Eye (Med Terms)

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Eye (Med Terms)
2011-10-19 15:40:09

Eye (Med Terms)
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  1. aqueous humor
    watery liquid secreted at the ciliary body that fills the anterior and posterior chambers of the eye and provides nourishment for the cornea, iris, and lens.
  2. choroid
    vascular layer beneath the sclera that provides nourisment to the outer portion of the retina
  3. ciliary body
    ring of muscle behind the peripheral iris that controls the power of the lens
  4. ciliary muscle
    smooth muscle portion of the ciliary body, which contracts to assist in near-vision capability
  5. conjunctiva
    joining together; mucous membrane that lines the eyelids and outer surface of the eyeball
  6. cornea
    transparent, anterior part of the eyeball covering the iris, pupil, and anterior chamber that functions to refract light to focus a visual image
  7. lacrimal gland
    gland located in the upper outer region above the eyeball that secretes tears
  8. lacrimal ducts
    tubes that carry tears to the lacrimal sac
  9. macula
    central region of the retina responsible for central vision; yellow pigment provides its color
  10. nasolacrimal duct
    passageway for tears from the lacrimal sac into the nose
  11. retina
    innermost layer that perceives and transmits light to the optic nerve
  12. pupil
    black circular opening in the center of the iris through which light passes as it enters the eye
  13. sclera
    tough, fibrous, white outer coat extending form the cornea to the optic nerve
  14. vitreous
    jelly-like mass filling the inner chamber between the lens and retina that gives bulk to the eye
  15. asthenopia
  16. blepharospasm
    involuntary contraction of the muscles surrounding the eye, causing uncontrolled blinking and lid squeezing
  17. diplopia
    double vision
  18. exophthalmus
    abnormal protrusion of one or both eyeballs
  19. lacrimation
    secretion of tears
  20. nystagmus
    involuntary, rapid oscillating movement of the eyeball
  21. photophobia
    extreme sensitivit to, and discomfort from, light
  22. scotoma
    blind spot in vision
  23. hyperopia
    farsightedness; difficulty seeing close objects when light rays extend beyond the proper focus on the retina
  24. myopia
    nearsightedness; difficulty seeing distant objects when light rays fall short of the proper focus on the retina
  25. presbyopia
    imparied vision owing to old age loss accommodation
  26. ptosis
    drooping of the eyelid usually caused by paralysis
  27. chalazion
    chronic nodular inflammation of a meibomian gland, usually the result of a blocked duct; commonly presents as a swelling on the upper or lower eyelid.
  28. cataract
    opaque clouding of the lens causing decreased vision
  29. conjunctivitis
    pinkeye; inflammation of the conjunctiva
  30. glaucoma
    group of diseases of the eye characterized by increased intraocular pressure that results in damage to the optic nerve, producing defects in vision
  31. hordeolum
    sty; an acute infection of a sebaceous gland of the eyelid
  32. keratitis
    inflammation of the cornea
  33. macular degeneration
    breakdown or thinning of the tissues in the macula, resulting in partial or complete loss of central vision
  34. retinal detachment
    separation of the retina from the underlying epithelium, disrupting vision and resulting in blindness if not repaired surgically
  35. blepharitis
    inflammation of the eyelid
  36. retinitis
    inflammation of the retina
  37. scleritis
    inflammation of the sclera
  38. trichiasis
    misdirected eyelashes that rub on the conjunctiva or cornea
  39. LASIK
    laser-assisted in situ keratomileusis- technique using the excimer laser to reshape the surface of the cornea to correct refractive errors such as myopia, hyperopia, and astigmatism
  40. IOL
    intraocular lens implant- implantation of an artificial lens to replace a defective natural lens
  41. mydriatic
    agent that causes dilation of the pupil
  42. miotic
    agent that causes the pupil to contract