OPTHALMIC VISUAL FIELD

Aps-6000cerTraditional Perimeter; LED SpecificationsRadius of stimulator: 300mm±5mm1.Stimulating source of LED2.Two visual lights: yellow and red.3.Stimulating strength: From 0nt (0asb) to318.310nt (1000asb), have 14 degree to adjust, the error is±10%.(1.)Error of background brightness: 4asb±10%(2.)Light spot: Diameter is 2mm +/- 0.25mm.(3.)The number of stimulating and the stimulating time:A.388 spots (Red light: 61spots, yellow: 327spots);B: stimulating retention time: 0.2s–2.0s, the program can adjust (±5%);C: stimulating spacing interval: 0.5s –2.0s, the program can adjust (±5%);4.Window of eye-position tracking: White-black CCD, directly tracking the testing eye;5.The length of chin rest: up-down: 80mm±10%; right-left 115mm±10%Eye position tracking: When blinking, the system will alarm automatically.