Anatomy of the Eye
This site (by Acuvue) had excellent animated explanations about:
- The Physiology of the Eye
Includes information about the iris and pupil, sclera and conjunctiva, tears, cornea, retina and choroid, seeing things, aqueous and vitreous humor, and supporting structures.
- Refractive Errors
Includes basic explanations of emmetropia (normal vision), myopia (near-sightedness), hyperopia (far-sightedness), presbyopia (inability to focus closely) and astigmatism.
- Eye-related Diseases
Information about glaucoma, cataracts, macular degeneration, diabetic retinopathy, hypertensive retinopathy and multiple sclerosis.