| A | B |
|---|
| Anisocoria | Pupils are unequal in size |
| Astigmatism | Unequal curvatures of the eye causing distortion of images |
| Blepharitis | Inflammation of the eyelids. |
| Cataract | Cloudiness or opacity of the lens of the eye |
| Chalazion | Cyst formation in the eyelid with obstruction of the sebaceous glands |
| Conjunctivitis | Pink eye |
| Conjunctivitis | Inflammation of the conjunctiva |
| Diplopia | Double vision |
| Ectropion | Eversion (turning outward) of the eyelid |
| Entropion | Inversion (turning inward) of the eyelid |
| Esotropia | Marked turning inward of eye |
| Esotropia | Crossed eye |
| Eversion | Turning outward |
| Exotropia | Marked turning outward of eye |
| Glaucoma | Increased intraocular pressure resulting in atrophy of the optic nerve |
| Hemianopia | Blindness in one half of the visual field |
| Hemianopsia | Blindness in one half of the visual field |
| Hordeolum | Infection of glands at the border of the eyelid |
| Hordeolum | Sty or stye |
| Hyperopia | Distant objects are clear - near objects are out of focus |
| Hyperopia | Farsightedness |
| Inversion | Turning inward |
| Keratitis | Inflammation of the cornea |
| Myopia | Near objects are clear - distant objects are out of focus |
| Myopia | Nearsightedness |
| Nyctalopia | Difficulty seeing at night or in faint light |
| Nyctalopia | Night blindness |
| Nystagmus | Involuntary, constant, rhythmic movement of the eyeball |
| Presbyopia | Loss of accommodation of the lens occurring with age (farsightedness) |
| Presbyopia | Visual condition causing farsightedness |
| Retinopathy | Any disease of the retina |
| Scotoma | A blind spot in the visual field |
| Strabismus | Eyes cannot be directed in a parallel manner to the same object |
| Strabismus | Squint |
| Xerophthalmia | Conjunctival dryness |
