The following are brief explanations of some of the more common eye disorders.  They do not replace a comprehensive eye examination and if you think you may have one of these please see your optometrist for advice.

Normal Focus.

Myopia (short-sightedness):  Blurry distance vision, near vision usually okay.

Myopic Focus.

Myopic Correction.

Hyperopia (long-sightedness):  Difficulty seeing clearly and comfortably up close.

Hyperopic Focus.

Hyperopic Correction.

Astigmatism:  Focussing error that causes blur in one direction, the eye is shaped more like a football than a soccer ball.

Presbyopia:  Begins from about age 40 with small print being clearer if held further away.

Pterygium:  Fleshy growth on the front of the eye that is caused by UV exposure and sometimes also dusty environments.

Cataract:  Clouding of the lens inside the eye results in gradual loss if vision.  Very common after age 60 and treatment may include surgery.

Cataract.

Normal Retina.

Age-Related Macular Degeneration (ARM):  Damage or breakdown of the macula that becomes more common with age.  Loss of central vision or trouble reading, even with glasses on.

Dry ARM.

Wet ARM.

Glaucoma:  Degenerative disease of the optic nerve that can result in tunnel vision or blindness.

Glaucoma.

Diabetes:  Can cause changes to the blood vessels in the retina (retinopathy).

Diabetic Retinopathy.