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Tests

SVEP (Sweep Visual Evoked Potential)
The SVEP is used to measure visual acuity, this is, vision for detail and patterns. In adults, visual acuity is measured with lines of letters. The SVEP measures acuity by assessing the response of brain waves to moving black and white stripes. The SVEP...

ERG (Electroretinogram)
This is an eye test that evaluates the function of the film (retina) that lines the inside of the eye. The processes that start vision take place in the retina. The retina is the most metabolically active tissue in the body. The ERG test...

DAT (Dark Adaptation Threshold)
This is a vision test that measures the adjustment of the eye occurring under low levels of illumination.

Testing vision of a 23 month old child
Testing of vision as early as possible is often important if there are worries about any deviations from normal development. Several detailed tests are possible at the age of two years when testing is administered as a play situation. See more information at The American Association For Pediatric Ophthalmology and Strabismus

Testing vision of a child with Down Syndrome
Children with Down Syndrome are often examined with tests that are used in testing younger children. The following short video sequencies were taken during clinical examination of a child with Down Syndrome after she had received her first pair of glasses. In this case the glasses correct for hyperopia, farsightedness. Correction of refractive errors is necessary before visual functions can be properly assessed. See more information at The American Association For Pediatric Ophthalmology and Strabismus

All content on this page courtesy of The American Association For Pediatric Ophthalmology and Strabismus