The near vision chart with the fixed-distance locating rod is very suitable for households, the vision of children (students) can be detected at any time, so as to find near sightedness timely, and treat or correct the near sightedness timely.张广勤...
The invention discloses a near vision chart with a fixed distance positioning rod. The near vision chart comprises a sighting target base plate, a positioning rod and a frontal plate, wherein an insertion tenon is arranged on a base part of the positioning rod; an insertion hole is formed ...
The TigerChart is everything it should be; lightweight, easy to recharge, colorful, useful, and FUN!What can the TigerChart do for you? The Tiger Chart is an exclusive device for checking near vision. Since it is a one-of-a-kind device, you can differentiate yourself from your competito...
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Colenbrander Continuous Text Near Vision Card Continuous text cards simulate everyday tasks and activities that patients may encounter, such as reading the newspaper. This is important because it is the main part of everyday vision. Also, by testing with continuous text, doctors can esta...
The Rosenbaum near vision card (Near Chart) (Figure 3) and Eye Chart may be useful in remote monitoring for homebound patients, those with high- risk chronic ocular diseases (such as age-related macu lar degeneration), or with potentially recurrent disease, and could substantially minimize...
Product name:lcd snellen digital near vision test eye chart vision chart software;Model:Elite;Certificate:CE ISO;Application:Optical Shop; vision test;Type:Ophthalmic Optical Equipments;Storage:5G;Remote:2.4G RF; Luminous;Display:fit for any size TV or m
Product name:Visual Acuity Eye Chart;Model:NVC-02;Function:Eye Sight Test;Test Distance:5m;Location:Shanghai;Type:with light;Warranty:12 month;Dimension:980x290x250mm;Special Use:Glass Shops;Chart:near vision Chart;customized support:OEM;place of origin:
Model Number NV-100 Product name Near Vision Tester Working distance 36cm Remote distance 60cm Weight 780g Dimension 220(H) *210(W)*42(D)mm Power Supply: LR6 AA battery 1.5V*3 Certificate: CE Color White MOQ 1 SET Packaging and delivery ...
This test consists of a backlit translucent chart presenting four sine-wave grating stimuli corresponding to spatial frequencies of 3, 6, 12 and 18 cycles per degree (cpd) and eight levels of contrast. Measures, in which a four-alternative forced choice paradigm was implemented, were conducted ...