| A | B |
| astigmatism | irregular curvature of cornea affecting vision |
| cataract | clouding of lens |
| chalazion | obstruction of mebomian gland |
| detached retina | separation of retina from the chorion |
| emmetropia | normal vision |
| glaucoma | increased intraocular pressure that can cause blindness |
| hyperopia | farsightedness |
| macular degeneration | degeneration of the macula lutea causing central blindness |
| myopia | nearsightedness |
| nyctalopia | night blindness |
| presbyopia | loss of near vision due to aging |
| pterygium | conjunctival tissue growing onto cornea |
| retinitis pigmentosa | injerited disorder with night blindness, atrophy and retinal changes |
| strabismuss | squint or crossed eyes |
| sty / hordeolum | infection of oil gland |
| enucleation | removal of entire organ whole - eye and others |
| LASIK definition | laser-assisted in situ keratomileusis |
| LASIK procedure | reshapes cornea to correct vision |
| phacoemulsification | removing cataract by breaking up the lens and then suctioning |
| PRK definition | photorefractive karatectomy |
| PRK procedure | removing part of cornea to improve vision |
| retinal photocoagulation | coagulating the retina to repair tears |
| scleral buckling | repair of detached retina using a band around the globe |
| trabeculectomy | creation of a drain to treat glaucoma |
| vitrectomy | removal of vitreous |
| Miotic | pupil constrictor |
| mydriatic | pupil dilator |
| oculus dexter / OD | right eye |
| oculus sinister / OS | left eye |
| oculus uterque / OU | each eye |
| optician | makes lenses / flasses |
| optometrist | professional who prescribes corrective lenses |
| visual acuity | measuring vision |