Shin-Nippon BR-7 User manual

I-050707
Refractor
Model:BR-7
Operation Manual
<Important>
Read this manual thoroughly before use.
Keep this manual on hand at all times.

I-050707
EU Representative
FAUSTO GUZZETTI
VIA SOLFERINO,5 21057 OLGIATE OLONA(VA), Italy
Supplied by
AJINOMOTO TRADING, INC.
SHIN-NIPPON Medical & Ophthalmic Instruments Dept.
EAST WING 7TH FLOOR, TFT BUILDING 3-1-22 ARIAKE, KOTO-KU, TOKYO 135-8071, JAPAN
TEL: [phone] FAX: [phone]
http//www.shin-nippon.jp
Manufactured by
TOWA MEDICAL INSTRUMENTS Co.,Ltd.
1698-2 Oaza Nakano Nakano-shi, Nagano-ken,383-0000 Japan

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CONTENTS
1. Specification Page 2
2. Exterior Features Page 4
(1) Front-side Page 4
(2) Back-side Page 5
3. Usage Page 6
(1) Setting Page 6
(2) Spherical lens Page 6
(3) Astigmatic lens Page 7
(4) Accessory lens Page 7
(5) Auxiliary lens Page 8
(6) Cross cylinder Page 9
(7) Rotating prism Page 9
(8) Cornea sight equipment Page 10
(Revision value tables 1, 2 --- Page 12)
(9) Near point card Page 13
4. Eye inspection method Page 14
(1) Setting Page 14
(2) Eye inspection by cloud fog method Page 15
(3) Precise measurement of astigmatic axis, astigmatic degree Page 16
(4) Precise measurement of spherical degree (Red green test) Page 18
(5) Eye balance tests
Way of using polarization filter/rotating prism Page 19
(6) Inclination (long distance) measurement
Using polarization measurement/Maddox rod and rotating prism Page 20
(7) Sorting of measurement result Page 22
(8) Measurement of presbyopia Page 22
(9) Measuring inclination at short distance
Measurement of horizontal/perpendicular inclination Page 23
(10) Other measurement
Concentration and dispersion/Perpendicular dispersion Page 24
(11) Degree conversion Page 25
5. Maintenance and check Page 26
(1) Daily maintenance Page 26
(2) Check Page 26

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1. Specification
(1) Model: REFRACTOR BR-7
(2) Measuring range:
Near sight: 0.00 ～-19D, 0.25D interval
Hypermetropia: 0.00 ～+16.75D, 0.25D interval
(It is possible to measure at 0.12D interval when using a built-in assistance lens.)
Astigmatic: 0.00 ～-6.00D, 0.25D interval
(It is possible to measure up to -8.00D when using attachment lens -2D.)
(It is possible to measure at 0.12D interval when using attachment lens 0D.)
(The astigmatic axis is 0 ～180 degree, 5 degree interval scale.)
(3) Cross cylinder: +/-0.25D (+/-0.37, +/-0.50D are an option.)
(4) Rotary Prism: 0 ～20△, 1△interval scale
(5) Assistance lens:
R ——— Lens for Retinoscope (S+1.50D)
P ——— Polarization lens
RMV ——— Perpendicular red Maddox (WMV perpendicular white Maddox)
RMH ——— Horizontal red Maddox (WMH level white Maddox)
R side ——— Red filter (Green filter on L side)
+.12 ——— Spherical lens +0.12D
PH ——— Pinhole
6△U ——— Separation prism (the frame on L side is 10*I)
+/-.50 ——— Fixation cross cylinder
OC ——— Shelter board
(6) Pupil distance: 48 ～75mm, 1mm interval scale
(7) Concentration: △-400 mm
(8) Forehead support control: 16mm
(9) Weight: About 4.25 kg
(10)Size: W318 x D293 x H96
(11)Accessories: Near point scale, near point folder
Near point card
Assistance lens (Two C-0.12, two C-2.00)
Vinyl covers for dust protection

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Characteristic of BR-7
1) Since the cross cylinder and the rotary prism keep a constant distance from the eyes by the
double loupe (turret) method, it is possible to do precise measurement and it can be used easily.
2) Since the cross cylinder loupe is automatically connected with the astigmatic axis by the
synchronic mechanism, it shows efficiency in the astigmatic precise measurement.
3) It becomes easier to use with front observation and the front operation.
4) The degree display window is big and can be easily read.
5) The combination of the eyesight equipment and the various assistance lens can provide a wide
variety of inspection such as eye view function inspections.
6) As for the mechanism of concentration for short distance inspection, all optical mechanisms are
set correctly by the lever operation.