visual acuity

Though some patients could make out patterns immediately, all patients' visual acuity improved over months of training.

In normally sighted newborns, retinal cone cells are not well-developed at birth, resulting in babies having poor visual acuity and poor color vision.

Volunteers using the lenses also reported noticeable improvements in visual acuity at a variety of distances and lighting conditions.

They formed a dataset from 34 variables that are commonly collected during ophthalmic examinations, such as age, current visual acuity, and the diameter of the cornea.

Sighted participants recruited for the study were asked to test and verify the phosphene maps based on visual acuity and object recognition.