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| conjunctiva |
the mucous membrane lining the inner surface of the eyelid and the surface of the eyeball. |
| exophthalmos |
abnormal protrusion of the eyeball caused by certain medical conditions such as hyperthyroidism. |
| eyelid |
either of the two folds of skin that can be opened or shut to uncover or cover the eyeball. |
| glaucoma |
a progressively disabling disease of the eye marked by increased pressure in and hardening of the eyeball. |
| intraocular |
occurring within or surgically implanted into the eyeball. |
| nystagmus |
an involuntary twitching or vibrating movement of the eyeball, usu. from side to side. |
| oculomotor |
designating the nerves that supply the muscles that move each eyeball. |
| ophthalmoscope |
an instrument for examining the retina and the interior of the eyeball. |
| orb |
an eye or eyeball. [1/3 definitions] |
| retina |
the light-sensitive lining at the back of the inner eyeball that receives images and transfers them to the optic nerve. |
| sclera |
the tough fibrous white or blue-white tissue that covers all of the eyeball except the part covered by the cornea. |
| tonometer |
any of various medical instruments that measure pressure, as of the blood, or tension, as in the eyeball. [1/3 definitions] |
| vitreous humor |
the transparent, colorless jelly that fills the eyeball between the lens and the retina. |
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