Purpose of Instrument

This instrument is used for examining the change of visual field which may be hurt by glaucoma, visual disease, disease of brain surgery and disease of retina.


 

Performance of Perimeter Scanner 

Radius of stimulator: 300mm±5%

Stimulating source of LED: Two visual lights: yellow and red.

Stimulating strength: From 0 mcd to40mcd, have 14 degree to adjust, the error is±10%.

Error of background brightness:3lux±10%

Light spot: Diameter is 2mm +/- 0.25mm.

The number of stimulating and the stimulating time:

A.390 spots (Red light: 61spots, yellow: 329spots);

B: stimulating retention time: 0.2s--3.0s, the program can adjust ;

C: stimulating spacing interval: 0.5s --3.0s, the program can adjust;

Window of eye-position tracking: White-black CCD, directly tracking the  testing eye;

The length of chin rest: up-down: ≥50mm;  right-left ≥28mm

Eye position tracking: When blinking, the system will alarm automatically.

Examination Ways:

Threshold test;Fast threshold;Full threshold;Qualitative test

Test Range/ Scope: