Clement Clarke 2001 User manual

Haag-Streit UK Ltd.,
Edinburgh Way,
Harlow,
Essex CM20 2TT UK
Tele: 01279 414969 International: [phone]
Fax: [phone] International: [phone]
Catalogue number: 1902499
Issue number: 4 03/15
0120
CLEMENT CLARKE
OPHTHALMIC
For the full IFU (I structio s for use) see Haag-Streit UK website
www.haagstreituk.com/ifu

Synoptophore
Instruction Manual
Models 2001, 2002, 2003

Synoptophore
Contents
Page 2 1. Symbol Explanations
Page 3 2. Intended Use
Page 3 3. Safety and Regulatory Information
Page 4 Synoptophore Panels - General Layout
Page 5 4. Unpacking the Instrument
5. Electical Connection
6. Adjusting Instrument to Patient
7. Measuring the Angle Alpha
8. Measuring the Objective Angle
Page 6 9. Subjective Angle and A.R.C.
10. Side Movements
11. Vergences
12. Heterophoria
13. Dimming Rheostats
14. Hand Flashing Switches
15. Auxiliary Lens Holders
16. Slide Ejectors
17. Promoting an After-Image (2001 and 2002 models only)
Page 7 18. Automatic flashing
19. Haidinger’s brushes (2001 model only)
Page 8 20. Changing Lamps and Fuses
Page 9 21. Cleaning
Page 10 22. Correct Disposal of this Product
Page 11 23. Device Ranges and Tolerances
Page 12/13 Illustrated diagram model 2001
Page 14/15 Illustrated diagram model 2002
Page 16/17 Illustrated diagram model 2003
Page 18 List of Synoptophore Slides
1
The suppliers cannot accept responsibility for the
performance, reliability or safety of this equipment if it
has been installed, serviced or modified by unauthorised
persons. The equipment must be connected only to an
approved electrical supply and used in accordance with
this instruction booklet.
Users may obtain, on request, information sufficient to
allow repairs to those parts classified by the suppliers
as repairable.
Whilst this information is provided in good faith and is
based on the latest information available at the time of
issue, this manual gives only a general indication of
product capacity, performance and suitability. Such
information must not be taken as establishing any
contractural or other commitment on the part of the
manufacturer and in no way should be constructed as a
warranty or representation concerning the product.

2

3
Synoptophore Instructions
2. Intended Use
The fundamental parts of the Synoptophore are two
independently movable sight tubes. With the instrument
set at zero (sight lines parallel) the two images, super-
imposed, will be seen as one integrated figure by a
subject with normal binocular vision. A subject with
strabismus, divergent or convergent, will only see a
superimposed (fused) figure with ease, when the sight
tubes are set at an angle to each other (angle of
deviation). The muscles are exercised by looking through
the tubes at the deviation angle and moving them
laterally in unison, so that the subject scans left and right
alternatively. Single eye exercise can be given by
gradually changing the angle between the sight tubes
whilst the subject maintains fusion for as long as
possible.
3. Safety and Regulatory
Information
• The Synoptophore may only be exposed to the
following environmental/ambient conditions for
transportation, storage purposes:
Ambient temperature: -40˚C to 70˚C
Humidity: 10-95% RH
Atmospheric pressure: 500hPa to 1060hPa
• The Synoptophore should be checked for damage
after unpacking.
• Defective equipment should always be returned in
appropriate packaging.
Notes on Usage
• Only qualified and trained personnel may operate the
equipment.
• The training of the operating personnel is the
responsibility of the equipment user.
• This type of sensitive measuring equipment should
be checked after exposure to external force (e.g.
unintentional shocks or being allowed to fall) and
if necessary, should be returned to the manufacturer
for repair.
• Reinforcement routines on and alterations to the
equipment may only be carried out by authorised
servicing technicians.
• The manufacturers of the equipment will not be
liable for any loss or damage resulting from unauthorised
intervention.
In particular, it is forbidden to loosen any screws; this
may reduce the accuracy of the measurement. All
ensuing warranty claims will be deemed null and void
as a result of unauthorised intervention.
Parts in contact with the body:
Chin Rest, Forehead Rest, eye piece and Handles for
adjustment of the horizontal angle between tubes, are the
applied parts.
•
Operating temperature +10˚C to +40˚C.
Warning:
To avoid risk of electric shock, this equipment must only
be connected to a mains supply with protective earth.
Please Note:
The HB Motor should not be run continuously.
Please switch off between patients.
Please Note:
The weight of the instrument should not exceed 20Kg.
Please Note:
Position the equipment making sure the power lead
and plug are easily accessible.
Please Note:
It is recommeded that the Synoptophore is
serviced annually.
Warning:
No modification of this equipment is allowed.
Recommended Fuse:
Littelfuse, 5 x 20mm, time lag fuse 213 series is
recommended.
Statutory Requirements
• The Synoptophore is designed as a Class 1 device with
a measuring function device under rule 12 of the
Medical Device Directive 93/42/EEC.
• The Synoptophore complies with the Ophthalmic
regulation ISO 10944:2009 & EN ISO 15004-1:2006.
Caution
• The safety regulations displayed in the operating
instructions are to be observed with special care.
Caution
Strictly observe all warning notices!
Electrical Specifications
Voltage: 110V 60Hz/230V 50Hz, 54VA
Fuse Rating: T1AL, T500mAL, 250V AC
Regulatory Information: CE-Mark
The products fulfill the requirements according to the
following standards:
Safety: EN60601-1 Part 1:
General Requirements for Safety,
Medical Electrical Equipment
Electrical: EN60601-1-2 Part 2: Collateral Standard:
Electromagnetic Compatibility
Environmental Conditions
Conditions for safe operation of the Product:
Ambient temperature: +10˚C to +40˚C
Humidity: 30% rh to 75% rh
Atmospheric pressure: 700hPa to 1060hPa
Dust Cover
A cover is provided to prevent dust accumulating.
Please switch the device off before covering.
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4
Synoptophore Panels - General Layout

5
Synoptophore Instructions
The following instructions are intended to assist the user
to become rapidly familiar with the various controls of the
Synoptophore. Although some brief references to the
orthoptic usage of the instrument have been given, it is
obviously beyond the scope of this manual to detail the
precise methods of examination and treatment of which
the Synoptophore is capable.
The figures in brackets on this description refer to the
illustrations of the particular model 2001, 2002 or 2003
pages 12, 13 & 14.
Please Note:
The HB Motor should not be run continuously.
Please switch off between patients.
4. To remove the instrument from the
packing case and subsequent handling.
Lift Synoptophore by handles (101),
NOT by the optical tubes.
5. Connection to electricity supply
(a.c. only).
Check the voltage of your electrical supply and
ensure that the voltage selector (126, p12)
corresponds to this.
Switch the instrument on at (124, rocker switch) and
check that the green indicator lamp is working.
6. Adjusting the Synoptophore to the
patient.
(a) Free the optical tubes by releasing the central lock
(122) and the two tube locks (121) which should be
turned inwards.
(b) Set the selector switch (131) to ‘NORMAL’.
(c) Measure the patient’s interpupillary distance and
and set the pointer on the scale (103) accordingly,
by means of the controls (102).
(d) Adjust the height of the chinrest (105) by
means of control (104).
(e) Adjust the projection of the chinrest, by sliding it
toward or away from the patient, so that the
patient’s eyes are as close as possible to the
eye pieces.
(f) Adjust the projection of the forehead rest (106, p12)
to accord with (e) above.
(g) Set all the pointers at zero:-
Pointers on horizontal deviation scales (109, p12) by
means of handles (108, p12). Pointers on vertical
deviation scales (111) by means of controls (110).
Pointers on torsional deviation scales (112) by
means of controls (113). Pointers on elevation
and depression scales (114) by means of
controls (115).
7. Measuring the angle alpha.
The angle alpha is the angle between the optic axis
of the eye and the visual axis. Often this can be
large enough to give the appearance of a squint or
to mask a squint and therefore it should be
assessed. In fact it cannot be measured, but a
close approximation can be made by using the
special slide A15 which is available. Place the slide
in either one of the slide carriers (116) and
instruct the patient to look at the zero mark.
Observe the reflection of the light on the patient’s
cornea and if this is not in the centre of the pupil the
patient is told to look at successive numbers, or
letters, until the reflection is in the centre. Adjoining
letters and numbers are separated by one degree,
thus if the patient is fixing on ‘E’ when the corneal
reflex is central, the angle alpha can be recorded
as 5˚. It is positive when nasal, and negative when
temporal, and the sign, too, must be recorded.
Having measured one eye, then the same procedure
should be carried out with the other eye fixing.
8. Measuring the objective angle.
If possible, the objective angle of deviation should
be measured with each eye in turn fixing. A pair of
slides from the simultaneous perception range is
used of a size large enough to be seen clearly but
small enough to ensure fixation on a central
point. The patient is instructed to look at the slides
and the tubes are then converged or diverged by
the operator until the corneal reflections are seen
to be central. One light is extinguished by
depressing one of the two flashing switches (129)
and the patient is told to concentrate on the
picture still illuminated. On being satisfied that
fixation is accurate the light for that eye is
extinguished at the same time as the light before
the other eye is turned on. The non-fixing eye is
then observed and any movement to take up
fixation is compensated for by converging or
diverging the tube. Vertical movements will also
be noted and the tube moved correspondingly by
the appropriate vertical deviation control (110).
The patient is then told to fix the picture as before
and the procedure is repeated until there is no
further movement of the non-fixing eye when it
takes up fixation. The angle obtained is the
objective angle. The examination is now repeated
with the other eye fixing. Similar measurements
will be made with the patient looking 15˚ to the
left, 15˚ to the right, 15˚ up and 15˚ down (the last
two by using the elevation and depression
controls (115)). In cases where there is poor
fixation in one eye the measurements will be
made with the good eye fixing only, and the tubes
will be moved until the corneal reflections are in
the centre of the pupils.
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6
Synoptophore Instructions
9. The subjective angle and abnormal
retinal correspondence.
The subjective angle is found by instructing the
patient to move the handles (108) himself until the
two pictures are superimposed. If this angle is the
same as the objective angle, when small pictures
are used, the retinal correspondence is normal.
If, however, the angles differ, the retinal
correspondence is abnormal and the difference
between the two is the angle of anomaly. These
measurements are made with the patient’s
prescribed correction; the appropriate lenses are
fitted into lens holders (118). The patient is then
measured without corrective lenses.
10. Side movements.
Lateral movements are valuable as a test of fusion
and as an orthoptic exercise. With a pair of slides
from the fusion range in the slide carriers and the
tubes set at an angle of deviation, the two tube
locking controls (121) are turned outwards. The
central lock (122) must be released. The tubes are
then moved side to side and the patient is
instructed to follow the movements of the pictures.
11. Vergences.
Horizontal vergences are measured on the scale
(119) which is engraved ‘ADD’ (Adduction - the
uniocular movement of the eye horizontally
INwards) and ‘ABD’ (Abduction - the uniocular
movement of the eye horizontally OUTwards).
Set the tubes at the angle of deviation and the scale
(119) at whichever zero mark is appropriate. A pair
of fusion slides must be used in the slide carriers.
Tighten the two tube locking controls (121) and
engage the central lock (122). Slowly rotate one or
both controls (121) whereupon the tubes will be
converged or diverged, according to the
requirements. The angle through which fusional
vergence is held by the patient is indicated on
scale (119) and the point where the pictures
‘break’, fusion is no longer maintained.
Vertical vergences are measured by rotating one
or other of the elevation and depression controls
(115). In both cases the corneal reflections should
be kept under observation.
12. Heterophoria.
Examination and measurement of cyclophoria is
possible with the Synoptophore by means of the
rotating slide carriers operated by controls (113).
Each carrier rotates 20˚ on either side of zero. The
phoria is indicated on scales (112).
Hyperphoria is measured on scales (110) in prism
dioptres, for the slide carriers move tangentially
up and down by the action of controls (111).
13. Dimming rheostats.
A rotary rheostat is in circuit with each of the 6V.
slide illumination lamps. By means of the controls
(130) these rheostats reduce the intensity of the
light as required. In certain post-operative cases it
is desirable to lesson the light reaching the
patient’s eye, whilst when treating amblyopes it
may be necessary to reduce the illumination in
front of the good eye and maintain the maximum
light in front of the amblyopic eye.
14. Hand flashing switches.
The two buttons (129) operate micro-switches,
one of which is in circuit with each of the 6V.
lamps. One use has already been described in
section 5. A further use is to stimulate a
suppressing eye by rapid flashing.
15. Auxiliary lens holders.
The two lens holders (118) fitted into the
eyepieces are used to carry additional lenses,
when required.
16. Slide ejectors.
The slide ejectors (117) can be used to make the
slides ‘jump’ and therefore stimulate a
suppressing eye.
17. Promoting an after-image
(Models 2001and 2002 only).
The after-image device consists of two high
intensity light sources each containing a 12V. lamp
and a condensing lens. Supplied with the
Synoptophore are two special slides, S.3 and S.4,
one consisting of a vertical white slit, with a red
central fixation point on a black background and
the other a horizontal slit also with red spot. These
slides are inserted into the carriers with the matt
surface inwards, i.e. towards the patient. The
opal defusing screens must be swivelled down-
wards out of the optical pathway by rotating the
black plastic control levers (123) situated
immediately below the latch of the lamphousing.
This allows more light to pass through the slide
and thus a stronger after-image is produced. The
selector switch (131) is turned clockwise to the
first position ‘R’, and the mains switch (124) is
turned on. Instruct the patient to fix the red spot
and ensure that his fixation remains steady for
a period of some 7 to 10 seconds. Turn the
selector switch clockwise to the next stop, which
is an ‘off’ position, remove the right eye slide
and swivel back the diffusing screen. Then turn
the selector switch clockwise to the next position
‘L’ and ask the patient to fix the red spot for the
prescribed time. Finally, turn the switch still
further to one of the ‘off’ positions, whilst you
remove the left eye slide and swivel back the
diffusing screen.

7
An after-image is maintained more easily when the
background is alternating light and dark, therefore
the automatic flashing unit should be used
immediately after the patient has been subjected
to the above. This is done simply by rotating still
further the selector switch until the stop marked
‘Both eyes’ is reached. If normal retinal
correspondence exists, the patient will now see an
after-image in the form of a cross + but if the
retinal correspondence is abnormal the
after-image may be a variant of one or other of the
following: I- or -l. The result should be given
graphically and the images labelled accordingly to
the eye concerned.
18. The automatic flashing unit
(Models 2001 and 2002 only).
The unit is fitted to Synoptophore Models 2001
and 2002. The same unit is used on both
instruments. From paragraph 14 above, you will
have understood that the flashing unit will only
operate the 6V lamps when the selector switch
(131) is turned to one of the three automatic
flashing positions (red engraving). The three
positions are ‘Both eyes’ ‘Left eye and ‘Right eye’.
If both eyes are to be flashed, for the purpose of
maintaining an after-image, the switch (133) can
be set at Simultaneous or at Alternating. If only
one eye is being flashed, it makes no difference
what position the switch is in. The speed of the
flash, or to put it another way, the length of the
light and the dark phase, is variable. The fastest
flashing (shortest phases) is obtained when switch
(132) is set at ‘Rapid’. In that position the light and
dark periods are of equal length. To make the
flashing slower, switch (137) is moved to the
‘Variable’ position and the two controls (134) are
now in circuit. One of these controls determines
the length of the light phase and the other
determines the length of the dark phase. The
engraved figures surrounding these two controls
do not represent actual lengths of time of the
phase. However, the high figures do indicate long
phases and the low figures short phases. If,
therefore, a slow flash (long phases) is required,
with light and dark of equal length, the controls
would be set at ‘10’. When set at ‘0’, the phases
would be short; when at ’5’, medium, and so on. If
the relationship between light and dark is required
to be unequal, then the two controls would be set
as different figures. A little experimentation will
soon show what a great variety of flashing can be
obtained. Although the figures are empirical, they
are of value in as much as they allow the operator
to preset the device. Moreover, it may be found
that a patient retains an after-image longer with a
certain light/dark relationship. The figures can
thus be recorded for future use.
19. Haidinger’s Brushes
(2001 Model only).
Haidinger’s brushes are phenomena caused by
polarised light falling upon the macula. As the
centre of the brush coincides with the fovea, the
use of the phenomenon is indicated in cases of
eccentric fixation and abnormal retinal
correspondence, for the patient, when he has
learned to recognise the brush, can then be made
aware of the spatial projection of the fovea and
use this point for fixation.
The device in Synoptophore Model 2001 consists
of two motorised units (138) which are inserted
into the slots in the optical tubes adjacent to the
slide carriers, when the brushes are required. At
other times the motor units are housed in the
special compartments of the instrument table. In
addition to the removable parts, the
Synoptophore itself has certain other built-in
features which are necessary for Haidinger’s
brush treatment. These are the iris diaphragms
(140), the high intensity light switches (130) and
the slots in the tubes to take additional blue filters
at (139).
Haidinger’s brushes can be presented to the
patient’s left eye, right eye both eyes together.
They can be used with after-image or with
ordinary slides or with both after-images and
slides. Special slides in black and white,
on transparent film are available, and are better
than coloured slides, for this purpose.
The motor unit (138) or units are inserted into the
slots adjacent to the slide carriers (see
illustration). The On/Off switches (135) on the
control unit are turned on and the motors then
commence to rotate the polaroid discs. Each
motor unit has its own speed control (137) and
each has its own reversing switch (136). Some
patients will see the brushes more easily than
others and the speed of rotation may have some
bearing on this. The reversing switches are useful
as a test to ensure that the brush is really being
observed.
The purpose of the iris diaphragms (140) is to
reduce the field of vision and to test whethter a
patient who superimposes the Haidinger’s brush
and the target really fixes centrally or not. If
superimposition remains when the aperture is at
its smallest, the patient must be viewing the target
with the fovea. If a patient who otherwise sees the
brush and target fails to do so at the smallest
aperture setting fixation is not foveal.
If the Haidinger’s brush is presented to one eye
only, it is necessary to place a blue filter into the
slot (139) before the other eye, so that two eyes
are ‘balanced’. If the filter is not inserted, the white
light will dominate the blue.
Synoptophore Instructions

8
20. Changing the lamps and fuse.
It is Important that only the correct voltage and
wattage lamps are used, otherwise the flashing
unit may be damaged. A protective fuse (141) of
the cartridge type is fitted on the push and turn
principle.
Models 2001 and 2002 each contain two 6V
lamps and two 12V quartz-halogen lamps. Model
2003 contains two 6V lamps only.
The 6V lamps are the slide illuminators and the
12V lamps provide the illumination for promoting
after-images and Haidinger’s brushes.
To exchange a 6V lamp, open lamphousing (127)
and unscrew the faulty lamp (turn anti-
clockwise). The plastic bulb holder can be drawn
from its supporting slide to facilitate lamp
removal.
To exchange a 12V lamp hold the glass with a soft
cloth and ease the lamp carefully upwards.
Warning: The quartz-halogen 12V lamp must
never be touched with uncovered fingers.
Service and Maintenance
Service and maintenance should only be carried out by
one of the following:
The manufacturer’s service personnel,
Recommended agents or
Qualified persons authorised by Clement Clarke
International Ltd.
Technical Manual
A Technical Manual (part no. 1902076) containing
maintenance information and wiring diagrams etc.
for 2000 series Synoptophores, is avaliable from
Haag-Streit UK Limited.
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Synoptophore Instructions

9
21. Cleaning
When an instrument is returned for service and repair
it would be advisable to clean it with a suitable cotton
cloth using a disinfectant (diluted, following
the manufacturer’s instructions on the bottle, for
surface cleaning).
When cleaning, particular attention should be shown
to the following:
Forehead rest (106),
Chinrest (105),
Handles for adjustment of horizontal angle (108)
and Breathshield (107).
Scope of action
Non-immersion manual cleaning methods are
appropriate for low risk items (those items that come
into contact with intact skin or do not contact the
patient) where soaking in aqueous solutions,
e.g. electrical and electronic equipment, will
compromise the device.
Alcohol wipes should be used to clean electrical contacts
on equipment (avoid contact with plastic parts or
enclosures as alcohol is a solvent).
Equipment required
• A warm water/detergent solution at correct dilution.
• A clean, disposable, absorbent, non-shedding cloth
for application of detergent solution.
• A clean, disposable, absorbent, non-shedding.
• An appropriate chemical neutraliser, first aid kit and
eyewash bottle, in case of splashing with detergent.
Procedure
If the item is electrical; ensure that it is disconnected
from the mains supply before commencing the
cleaning procedure.
Make sure that the device/lamps have cooled down
before cleaninng.
Wearing protective clothing, immerse the cleaning cloth
in the detergent solution and wring thoroughly.
Commencing with the upper surface of the item, wipe
thoroughly ensuring that detergent solution does not
enter electrical components.
Periodically rinse the cloth in clean water and repeat the
above steps.
Surfaces should be carefully hand-dried using a cloth.
Note: Non-immersion, manual cleaning is not a
disinfection process, but where an alcohol wipe is used
to dry surfaces, this may have a disinfecting effect.
Safely dispose of cleaning materials and alcohol wipes, if
used.
Monitoring and Control
• Staff training
• Physical application
• Nature of soil
• Accessibility of cleaner to item/part of equipment
• Detergent concentration
Safety precautions
• Always wear protective waterproof clothing, robust
gloves and eye protection if splashing is likely to occur.
• After removing protective clothing, wash and dry hands
thoroughly.
• Avoid splashing.
Precautions should be taken when using alcohol, as it is
flammable.
The ‘pooling’ of alcohol on equipment should be
avoided and alcohol evaporation ensured, if necessary
by forced air-drying. Care should also be taken to ensure
that alcohol does not enter the item e.g. via ventilation
slots.
The above was written with reference to; Sterilization,
Disinfection and cleaning of Medical Devices &
Equipment: Guidance on Decontamination from the
Microbiology Advisory Committee to the Department of
Health Medical Devices Agency (MAC manual section 2
page 20 updated April 2005)
Synoptophore Instructions

10
22. Correct Disposal of this Product
The Waste Electrical and Electronic Equipment Directive
(WEEE Directive) aims to minimise the impact of
electrical and electronic goods on the environment, by
increasing re-use and recycling and reducing the
amount of WEEE going to landfill. It seeks to achieve
this by making producers responsible for financing
the collection, treatment, and recovery of waste
electrical equipment, and by obliging distributors to
allow consumers to return their waste equipment free
of charge.
Haag Streit UK Ltd is a producer of Electrical & Electronic
goods therefore we have registered our
business with the Government Environment Agency
through a registered compliance scheme.
Scheme operator :
Valpakweee Compliance
Valpak Ltd
Stratford Business Park
Banbury Road
Stratford-upon-Avon
CV37 7GW
Producers Number: WEE/HA0234YV/PRO
Haag Streit UK Ltd have marked all its applicable goods
with the crossed out wheeled bin symbol. This will help
separate WEEE from other waste streams. We will
include a producer’s identification mark and show that the
product was placed on the market after 13 August 2005;
a thick bar underneath the wheeled bin symbol is used to
denote this.
END OF LIFE – HOUSHOLD USERS
Household users should contact their local government
office, for details of where and how they can take all
applicable items for environmentally safe recycling.
END OF LIFE
For all applicable devices under the WEEE directive,
which have reached their end of life, please contact Haag
Streit customer services on 01279 414969 who will
instruct you on how to return your device for disposal.
23. EMC Declaration
With the increased number of electronic devices such
as PC’s and mobiles, medical devices in use may be
susceptible to electromagnetic interference from
these devices. Which may result in incorrect operation
of the medical device and create a potentially unsafe
situation. Medical devices should also not interfere
with other devices.
In order to regulate the requirements for EMC with the
aim to prevent unsafe product situations, the EN60601-
1-2 standard has been implemented. This standard
defines the levels of immunity to electromagnetic interfer-
ences as well as maximum levels of electromagnetic
emissions for medical devices.
Medical devices manufactured by Haag-Streit UK Ltd
conform to this EN60601-1-2 standard for both immuni-
ty and emissions.
Nevertheless, special precautions need to be observed:
The use of accessories and cables other than those
specified by Haag-Streit UK Ltd, with the exception of
cables sold by Haag-Streit UK Ltd as replacement
parts for internal components, may result in increased
emission or decreased immunity of the device.
The medical devices should not be used adjacent to or
stacked with other equipment. If adjacent or stacked use
is unavoidable, the medical device should be seen to
operate normally as it should in this situation.
Further guidance regarding the EMC environment
(in accordance with EN60601-1-2) in which the device
should be used is available at www.haag-streit-uk.com
Synoptophore Instructions

11
24. Device ranges and tolerances
Interpupillary distance Adjustable range 45mm to 75mm
Horizontal movement of each arm independently Outwardly 40˚/70∆
Inwardly 50˚/100∆
Graduation ± 1˚/2∆
Vertical rotation of each arm indepentently Angle of elevation 30∆
Angle of depression 30∆
Torsion movement of visual targets (cyclo-) Clockwise range 20∆
Anti-clockwise range 20∆
Graduation ± 1∆
Chin-rest height Adjustable range from 71mm to 133mm from
chinrest to eyepiece centres bottom datum
∆Prism dioptre equivalent correction at the patient’s eye. The actual linear tolerance will depend on the optical path
length of the occular arms.
Adjustment tolerence Accuracy
Interpupillary distance setting ±0,5mm
Lateral alignment of targets at zero setting ±0.5˚ or 1 dioptre∆
Vertical alignment of targets at zero setting ±0.125˚ or ±0,25 dioptre∆
Torsional alignment of targets at zero setting ±0.5˚
Alignment of targets throughout the horizontal
movement range with both arms locked together Vertically ±10˚
Laterally ±0.5˚
Torsionally ±10˚
∆The tolerances given are expressed in degrees when the scale is graduated in degrees, and in prism dioptres when
graduated in prism dioptres.
Synoptophore Instructions

12
Mechanical
101. Carrying handles (2)
102. Interpupillary distance selection controls (2)
103. Interpupillary distance scale
104. Chinrest height control
105. Chinrest
106. Forehead rest
107. Breathsheild
108. Handles for adjustment of horizontal angle
between tubes (2)
109. Horizontal deviation scales (left & right) (2)
110. Vertical deviation controls (Hyper) (2)
111. Vertical deviation scales (Hyper) (2)
112. Torsional deviation scales (Cyclo) (2)
113. Torsional deviation controls (Cyclo) (2)
114. Elevation and depression scales (2)
115. Elevation and depression controls (2)
116. Slide carriers (2)
117. Slide ejectors (2)
118. Auxiliary lens holders (2)
118a.Eyepiece lens (removable ) (2)
119. Horizontal vergence scale
120. Horizontal vergence controls (2)
121. Tube locking controls (horizontal) (2)
122. Central lock
123. Lever for swivelling opal screen from optical
pathway (2)
Electrical
124. On/Off switch/Indicator lamp
125. Mains supply input plug and socket
126. Voltage selector
127. Lamphousing
128. Access to bulb (screw) (2)
129. Hand flashing switches (2)
130. Dimming rheostats (2)
131. Selector switch
Automatic Flashing
132. Rapid/variable switch
133. Simultaneous/alternating switch
134. Light and dark phases controls (2)
Haidinger’s brushes
135. On/Off switches (Haidinger’s Brushes)
136. Reversing switches (2)
137. Speed controls (2)
138. Haidinger brush assembly (2)
139. Blue filters (removable) (2)
140. Iris diaphragms - controls (2)
141. Fuses
142. Halogen after-image lamp
143. Slide illumination lamp
116
112
113
115
124
122
103
134
135
136
111
110
127
119
120
130
131
121
132
129
133 137
114
104
101
101
142 144
Synoptophore Model 2001

13
107
108
109
118a
139
117
123
101
102
118
105
108
138
142
128
125
126
141
138 106
140
143
123
Synoptophore Model 2001

14
Mechanical
101 Carrying handles (2)
102 Interpupillary distance selection controls (2)
103 Interpupillary distance scale
104 Chinrest height control
105 Chinrest
106 Forehead rest
107 Breathshield
108 Handles for adjustment of horizontal angle
between tubes (2)
109 Left hand scale plate (1)
109a Right hand scale plate (1)
110 Vertical deviation controls (2)
111 Vertical deviation scales (2)
112 Torsional deviation scales (2)
113 Torsional deviation controls (2)
114 Elevation and depression scales (2)
115 Elevation and depression controls (2)
116 Slide carriers (2)
117 Slide ejectors (2)
118 Auxiliary lens holders (2)
118a Eyepiece lens (removable) (2)
119 Horizontal vergence scale
120 Horizontal vergence controls (2)
121 Co-ordinating arm lock (2)
122 Central lock
123 Lever for swivelling opal screen from optical
pathway (2)
Electrical
124 On/Off switch/Indicator lamp
125 Mains supply input plug and socket
126 Voltage selector
127 Lamphousing
128 Access to bulb (screw) (2)
129 Hand flashing switches (2)
130 Dimming rheostats (2)
131 Selector switch
Automatic Flashing
132 Rapid/variable switch
133 Simultaneous/alternating switch
134 Light and dark phases controls (2)
141 Fuses
142 Halogen after-image lamp
143 Slide illumination lamp
114
116
112
113
115
124
122
103
134
133
111
110
127
119
120
130
131
121
104
132
129
101
101
Synoptophore Model 2002

15
106
128
107
108
109
118a
117
123
101
102
118
105
109a
125
126
141
143
142
Synoptophore Model 2002

16
Mechanical
101 Carrying handles (2)
102 Interpupillary distance selection controls (2)
103 Interpupillary distance scale
104 Chinrest height control
105 Chinrest
106 Forehead rest
107 Breathshield
108 Handles for adjustment of horizontal angle
between tubes (2)
109 Left hand scale plate (1)
109a Right hand scale plate (1)
110 Vertical deviation controls (2)
111 Vertical deviation scales (2)
112 Torsional deviation scales (2)
113 Torsional deviation controls (2)
114 Elevation and depression scales (2)
115 Elevation and depression controls (2)
116 Slide carriers (2)
117 Slide ejectors (2)
118 Auxiliary lens holders (2)
118a Eyepiece lens (removable) (2)
119 Horizontal vergence scale
120 Horizontal vergence controls (2)
121 Co-ordinating arm lock (2)
122 Central lock
123 Lever for swivelling opal screen from optical
pathway (2)
Electrical
124 On/Off switch/Indicator lamp
125 Mains supply input plug and socket
126 Voltage selector
127 Lamphousing
128 Access to bulb (screw) (2)
129 Hand flashing switches (2)
130 Dimming rheostats (2)
Automatic Flashing
132 Rapid/variable switch
133 Simultaneous/alternating switch
141 Fuses
143 Slide illumination lamp
114
116
112
113
115
124
122
103
111
110
127
119
120
130
121
104
129
101101
Synoptophore Model 2003

17
106
128
107
108
109
143
125
126
141
118a
123
117
132
101
102
118
105
119a
Synoptophore Model 2003