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Chabner Chapter 17T
Study Guide for Test
| Question | Answer |
|---|---|
| Fibrous layer of clear tissue that extends over the anterior portion of the eye and is continous with the white of they eye | cornea |
| yellowish region in the retina; contains the fovea centralis | Macula lutea |
| Place where optic nerve fibers cross in the brain | optic chiasma |
| adjustment of the lens by the ciliary body | accommodation |
| photosensitive receptor cells of the retina; make the perception of color possible | rods |
| the combining form for cornea is | kerat/o |
| the combining form for the ciliary body is | Cycl/o |
| The meaning of palpebr/o | eyelid |
| an eye inflammation commonly called "pink eye" | conjunctivitis |
| impairment of vision due to old age | presbyopia |
| myopia | nearsightedness |
| astigmatism | defective curvature of the cornea or lens |
| glaucoma is primarily diagnosed by | tonometry |
| macular degeneration produces | loss of central vision |
| small hard mass on the eyelid; formed by a sebaceous gland enlargement | chalazion |
| snail shaped, spirally wound tube in the inner ear | cochlea |
| channel between the middle ear and teh nasopharynx | eustachian tube |
| myring/o means | tympanic membrane |
| bacterial infection of the middle ear | suppurative otitis meda |
| tinnitus | ringing sound in the ear |
| visural examination of the ear | otoscopy |
| nerve deafness occurring with aging | presbycusis |
| fungal infection of the ear | otomycosis |
| contains sensitive cells (rods and cones) that transmit light energy to nervous impulses | retina |
| contains muscles that control the shape of the lens and secrete aqueous humor | ciliary body |
| transparent body behind the iris in front of the vitreous humor; refracts light rays | lens |
| jelly-like material behind the lens; helps maintain the shape of the eyeball | vitreous humor |
| dark center of the eye through which light rays enter | pupil |
| cascular layer of the eyeball that is continuous with the iris | choroid |
| delicate membrane lining the eyelids and convering the anterior eyeball | conjunctiva |
| fibrous layer of clear tissue that extends over the anterior portion of the eyeball | cornea |
| colored portion of the eye; surrounds the pupil | iris |
| tough, white outer coat of the eyeball | sclera |
| the normal adjustment of the lens to bring an object into focus | accomodation |
| a yellowish region on the retina lateral to the optic disc | macula |
| photosensitive receptor cells in the retina that make color perception possible | cone |
| inflammation of the vascular layer of the eye | uveitis |
| condition of dry eyes | xerophthalmia |
| outward deviation of the eye | exotrophia |
| inward deviation of the eye | esotrophia |
| absence of the lens of the eye | aphakia |
| absence of vision in half of the vision field | hemianopsia |
| abnormal deviations of the eye | strabimus |
| increased intraocular pressure results in retinal and optic nerve damage | glaucoma |
| localized purulent infection of a sebaceous gland in the eyelid | hordcolum |
| clouding of the lens causes decreased vision | cataract |
| retinal microaneurysms, hemorrhages can occur secondary to an endocrine condition | diabetic retinopathy |
| deterion of the macula lutea of the retina | macular degeneration |
| inflammation of conjunctiva | conjunctivitis |
| inflammation of the middle ear | otitis media |
| area behind the cornea and in front of the lens and iris | anterior chamber |
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