Serving Your Vision
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Diagnostic & Specialist
VT-5 View Tester
We have drawn on our wide experience and vast amount of technical know-how accumulated in this field to develop a more precise and labour saving tester and its highest performance wins a greatest popularity among many users all over the world as well as in Japan.
Level adjustment can be made easily in one-touch operation by using the levelling knob and level.
The wide range of adjustment of 48mm through 80mm and easy to read scale in 1mm graduation.
Convenient knobs, located on both sides, enable smooth and rapid adjustment.
Adjustment can be made exactly from -19.00D to +16.75D in 0.25D steps and the sphere power rapid feed dial allows rapid eye examination per ±3.00D. With accessory lenses, it is possible to read up to ±0.12D. Also, the auxiliary lenses ±10.00D(option) are available to extend adjustment range up to -29.00~ +26.75D.
The cylinder lens graduated in 0.25D steps allows adjustment up to 0 ~ -6.00D and with 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 5°steps. Each adjustment can be made rapidly with two knobs on the same axis.
The cross cylinder loop, through a special mechanism synchronized completely with the cylinder lens axis control knob, automatically rotates to a corresponding axis each time you change the cylinder lens axis.
The readings can be taken accurately up to 20△ in 1△ scale graduation. Also, the click stop permits you to measure horizontal and vertical strabismus and heterophoria. Using both right and left prisms makes you possible to take readings up to 40△ test eye balance.
| Left | Right | |||
| O | Open aperture | O | Open aperture | |
| OC | Occluder | OC | Occluder | |
| ±.50 | ±0.50D cross cylinder | ±.50 | ±0.50D cross cylinder | |
| 6△U | 6 prism diopter base Up | 10 Δ I | 10 prism diopter base In | |
| PH | Pin hole | PH | Pin hole | |
| +.12 | +0.12D auxiliary lens | +.12 | +0.12D auxiliary lens | |
| RL | Red filter | GL | Green filter | |
| RMH | Red maddox rod, horizontal | WMH | White maddox rod, horizontal | |
| RMV | Red maddox rod, vertical | WMV | White maddox rod, vertical | |
| P135° | Polarizing filter, axis 135° | P45° | Polarizing filter, axis 45° | |
| P45° | Polarizing filter,axis 45° | P135° | Polarizing filter,axis 135° | |
| R | Retinoscopic lens, +2.00D, for 50cm | R | Retinoscopic lens, +2.00D, for 50cm | |
Precision measurement is possible with lens setting to suitable angle for near testing (by closing the convergence lever inward) as well as distance (by opening it outward). This converges the optical system coincident to the convergence of the patient’s eyes and the patient can always look through the correct optical centres. Thus, this unique system insures perfection in testing.
Through the sight, align the corneal vertex of the patient and set the patient’s cornea in correct position (at 12mm from the view tester lenses).
Measurement should be made at ”0” position of the scale.
The scale is graduated in “lnch”, “Centimeter” and “ Diopter”. It can be set at distance you like for use and when not in use, it can be stored in standing position. The Near Point Chart contains a rotatable disc with 12 kinds of tests at both sides. The scale is 67cm in length.
The knob adjusts distance between cornea and lenses and makes positioning of the patient’s forehead very smooth.
-0.12C ………..2 pcs / -2.00C …………. 2 pcs
(Option)
+10.00S ……..2 pcs / -10.00S ……….. 2 pcs
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