Foróptero Marca: Gilras Modelo: GR 14 Origen: China

With our vast experience and technical know-how in the ophthalmic
field we have developed a more precise and labor saving tester.
The GR 14 Refractor is applicable to ophthalmic departments and optical stores for precision measurement of visual functions such as myopia, hyperopia, astigmatism, visual acuity balance, phoria, stereoscopic vision and visual acuity.

Level adjustment
Level adjustment can be made easily, one-touch operation by using
the leveling knob and level.

Interpupillary adjustment
The wide range of adjustment from 45 mm/1.77 in through
80mm/3.15 in and an easy to read scale in 1mm/0.04 in graduation.
Convenient knobs, located in both sides, enable smooth and rapid adjustment.

Adjusting Sphere Power Readings
Exact adjustment can be made from -19.00D to +16.75D in 0.25D steps. The sphere power rapid feed dial allows rapid eye examination per ¡¾3.00D. With accesory lenses, it is possible to read up to ¡¾0.12D.
Also the auxiliary lenses ¡¾10.00D (optional) are available to extend adjustment range up to -29.00D ~ +26.75D.

Adjusting Cylinder Power and Axis
The cylinder lens graduated in 0.25D steps allows adjustment up to
0~ -6.00D and with the accessory lens - 2.00D, it is possible to
extend adjustment range up to - 8.00D.
The cylinder axis can be adjusted up to 0¨¬~ 180¨¬ in 50 steps.
Each adjustment can be made rapidly with two knobs on the same axis.

Cross Cylinder ( ¡¾0.25)
The cross cylinder loupe rotates automatically through a special syncronized mechanism with the control knob, to change the cylinder lens axis.

Convergence System
Precise measurement is possible with the lens set at a suitable angle for near vision testing (by closing the convergence lever inward) as well as for distance (by opening it outward).
This converges the optical system coincident to the convergence of the patient¢¥s eye while the patient looks througth the correct optical centers. Therefore, this unique system ensures perfect testing.

Corneal Aligning Device
It is used to align the corneal vertex of the patient and set the patient¢¥s cornea in the correct position (at 12mm from the view tester lenses). Measurement should be made at the "0" position of the scale.

Rotary Prism
The readings can be taken accurately at 20? in 1? scale graduation.
It has also a click stop that permits you to measure horizontal and
vertical strabismus and heterophoria. Using both right and left prism
it is possible to take readings up to 40? and test eye balance.

Near point scale and Chart
The scale can be graduated in "Inches", "Centimetres" and "Diopters".
It can be set at a distance you like to use and when it is not in use, it
can be stored in a standing position.
The Near Point Chart contains a rotatable disc with 12 kinds of tests on both sides. The scale is 67cm/26.4in length.

Accessory Lenses
Three types of spare lens are included:
-2.00CYL, -0.12CYL and 0.0CYL

Spherical Lens:
Range of measurement -19.00D +16.75D
Step length 0.25D
(being 0.12D when 0.12D auxiliary lens is used)

Cylindrical Lens:
Range of measurement 0 ~ 6,00D
(being 0 - 8,00D when additional lens is used)
Step 0.25D
(being 0.12D when additional lens is used)

Axis of Cylindrical Lens:
Range of measurement 0, 180
Step 5¨

Cross Cylindrical Lens:
¡¾0.25D

Rotary Prism:
Range of measurement 0, -20¥Ä
Step 1¥Ä

Pupil Distance:
Range 50mm ~ 75mm
Step 1mm

Aggregated Adjustment:
00,380mm

Adjustment of Forehead Rest:
16mm

Vertex Distance:
13.75mm

Overall Dimensions:
335mm(L), 320mm(W), 90mm(H)

Weight:
5kg