The device has a housing with a test field that can be back lit by an associated light source and that can accommodate several vision test character tables. The housing has at least a second test field (15) in which a reading specimen (26) is arranged. Reading specimens for monocular and...
near point test card 近点验光卡 double vision test 复视试验 distant vision test chart 远视力表 test for distant vision 远视力检查法 red green vision test 红绿视力表 near on 将近…,接近…相似单词 vision n. 1. 视力;视觉 2. 看见;看见的事物 3. 幻觉;幻象;【宗】幽灵 4. 幻想 5. ...
Celego is a new, innovative, self-test for rapid self-assessment and monitoring of vision at a reading distance. Cultural and learning problems associated with…
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But young people aren’t the only ones with vision problems in China. There are about 450 million near-sighted people in China. That’s about one-third of the country’s population. This number has risen to 700 million by 2020.“This is mainly due to the long time near-distance use ...
NV-100 near vision Tester It tester enable a complete refractive and binocular vision investigation to be carried out with the head and eyes in their normal posture at any working distance. The refractive tests include: Measurement of visual acuity using Snallen ...
Nv-100 Top selling Protable Near Vision Tester,Cophthalmic Ophthalmic Equipment,Optical precision Test Specifications Test Distance 36cm Distant Contral 60cm Size 220(H)×210(W)×42(D)mm Weight 780g Power Supply LR6 AA/1.5V×3 Product s...
HOTV Runge Pocket Near Vision Test Card quantity SKU:2030Category:Pocket Cards Description Additional information Description Developed by Dr. Peter Runge, MD. The back side of the card includes the chart legend, mm ruler, pupil gage and acuity notations....
The device can be powered by the computer with the USB cable Near vision tester measurement: \ 1. Put the vpal on the stand, adjust the gradient, 2. TURN ON THE DEVICE 3. USE THE CORD TO DETERMINE THE TEST DISTANCE OF 40CM FROM THE EYE. ...
athe idea for the new machine came to Mr Baker while he was devoted to his invention 当他致力了于他的发明时,想法为新的机器来了到Baker先生[translate] athe UK NANDTB tumbling E near vision acuity test 英国NANDTB翻滚的E在视觉敏锐测试附近[translate]...