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involuntary contraction of the muscles surrounding the eye, causing uncontrolled blinking and lid squeezing
distorted vision caused by an oblong or cylindrical curvature of the lens or cornea that prevents light from coming to a single focus on theretina
farsightedness; difficulty seeing close objects when light rays extend beyond the proper focus on the retina
nearsightedness; difficulty seeing distant objects when light rays fall short of the proper focus on the retina
decreased vision in early life due to a functional defect that can occur as a result of strabismus, refractive errors, or trauma; usually occurs in one eye. also known as lazy eye
baggy eyelid; overabundance and los of elasticity of skin on the upper eyelid, causing a fold of skin to hang down over the edge of the eyelid when the eyes are open
drooping of the eyelid usually caused by paralysis; usually a result of a stroke
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
disease of the retina in diabetics characterized by capillary leakage, bleeding, and new vessel formation (neovascularization), leading to scarring and loss of vision . veins rupture, scar tissue, 8-10 years before it begins affecting eyes.
group of diseases of the eye characterized by increased intraocular pressure that results in damage to the optic nerve, producing defects in vision
separation of the retina from the underlying epithelium, disrupting vision and resulting in blindness if not repaired surgically
instrument that holds corrective lenses in front of the eye to determine optical correction
notmal range (18-22). high levels can lead to glaucoma unless you have a thicker sclera
laser-assisted in situ keratomileusis (LASIK)
technique using the excimer laster to reshape the surface of the cornea to correct refractive errors such as myopia, hyperopia, and astigmatism
intraocular lens (IOL) implant
implantation of an artificial lens to replicate a defecive natural lens
mydriatic (dialation of pupil)
agent that causes dilation of the pupil (ie for certain eye examinations)
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