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Chapter 15 Sense 3
Pathology
| Term | Definition |
|---|---|
| astigmatism | Defective curvature of the cornea of lens of the eye. |
| hyperopia (hypermetropia) | Farsightedness. |
| myopia | Nearsightedness. |
| presbyopia | Impairment of vision as a result of old age. |
| cataract | Clouding of the lens, causing decreased vision. |
| chalazion | Small, hard, cystic mass (granuloma) on the eyelid. |
| diabetic retinopathy | Retinal effects of diabetes mellitus include microaneurysms, hemorrages, dilation of retinal veins, and neovascularization (new blood vessels form in the retina) |
| glaucoma | Increased intraocular pressure results in damages to the retina and optic nerve with loss of vision. |
| hordeolum (stye or sty) | Localized, purulent, inflammatory staphylococcal infection of a sebaceous gland in the eyelid. |
| macular degeneration | Progressive damage to the macula of the retina. |
| nystagmus | Repetitive rhythmic movements of one or both eyes. |
| retinal detachment | Two layers of the retina separate from each other |
| strabismus | Abnormal deviation of the eye. |