ophthalmology

n (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia

(ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea

n (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea

(ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina

(ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability