The most common way to do this is using what's called a Snellen chart. The chart has larger letters or symbols at the top, and they get smaller as you move down the rows. When you think of having your eyes checked, the eye chart test may be the first thing that comes to mind. W...
EYE CHART meaning: a chart that has numbers and letters of different sizes and that is used for testing someone's vision
The method of the present invention comprises a vision test value related records to correctly identify a person by the eye chart on at least two letters, numbers, and graphics objects, and to compare the value of each eye patients. 由于这些符号是不同的,视敏度的记录值是准确的,并与每一次...
To evaluate yournear vision, your eye doctor may use a small hand-held card called aJaeger eye chart. The Jaeger chart consists of short blocks of text in various type sizes. A Jaeger eye chart contains several blocks of gradually larger text and is used to test near vision. A Jaeger ey...
person’s vision by how well they can read and see detail. Dr. Herman Snellen, a Dutch eye doctor, created the eye chart in 1862 for his colleague, Dr. Franciscus Donders. Dr. Donders conducted eye exams by having people look at a chart on the wall and describe what they could see....
Best Quality Optical LED 3m, 5m Visual Acuity Eye Vision Test Chart Feature of visual chart : Durable, Environmentally-Friendly and Energy Saving Slim but Delicate with Uniform Luminance Durable, High-definition and Ultra-bright Protect Your Eyes Adopting extra thick ...
: a chart read at a fixed distance for purposes of testing sight especially : one with rows of letters or objects of decreasing size Examples of eye chart in a Sentence Recent Examples on the Web To measure improvement in vision acuity—the clarity or sharpness of vision—researchers used...
eye chart noun :a chart read at a fixed distance for purposes of testing sight especially:one with rows of letters or objects of decreasing size Examples ofeye chartin a Sentence Recent Examples on the WebTo measure improvement in vision acuity—the clarity or sharpness of vision—researchers ...
Elite is a complete innovative idea and solution to the vision testing, and changes the way the vision chart used to be defined. All of the software are built into the USB size drive with a wide array of different charts and multiple functions. Just simply plug it into any ...
Distance visual acuity (DVA) was assessed monocularly with a Chinese standard logarithm visual acuity E chart (GB 11533-2011) in an illuminated cabinet (WSVC-100, Wenzhou, China). If participants' prescription was worn, both uncorrected distance visual acuity (UDVA) and presenting distance visual...