Encyclopedia > N > Negative relative accommodation
Negative relative accommodation
Negative relative accommodation (NRA) is a measure of the maximum ability to relax accommodation while maintaining clear, single binocular vision This measurement is typically obtained by an ophthalmologist] or [[optometrist during an eye examination using a phoropter. After the patient's distance correction is established, he or she is instructed to view small letters on a card 40 cm from the eyes.
Information are taken from Wikipedia, the open encyclopedia, to which contribute many volunteers from around the whole world. Texts are available under the following conditions GNU Free Documentation License.
Encyklopedie (cz) Encyklopédia (sk) Enzyklopädie (de)