Diseases and Conditions Flashcards
achromatopsia
sever congenital deficiency in color perception
chalazion
small hard tumor developing on the eyelid
conjunctivitis
inflammation of the conjunctiva
ectropion
eversion or outward turning of the edge of the lower eyelid
entropion
inversion of the lower lid
epiphora
abnormal overflow of tears
hordeolum
localized, circumscribed inflammatory swelling of one of the several sebaceous glands
metamorphopsia
visual distortion of objects
nyctalopia
impaired vision in dim light
nystagmus
involuntary eye movements
papilledema
swelling and hyperemia of the optic disc
photophobia
unusual intolerance and sensitivity to light
presbyopia
loss of accommodation of the crystalline lens associated with aging
retinopathy
any disorder of retinal blood vessels
trachoma
chronic contagious form of conjunctivitis and can lead to blindness
anacusis
complete deafness
conduction impairment
blocking of sound waves as they pass through the external and middle ear
labyrinthitis
inflammation of the inner ear that results in acute febrile process
meniere disease
disorder of the labyrinth that leads to progressive hearing loss
noise-induced hearing
cause by destruction of hair cells and the organs responsible for hearing
otits externa
infection of the external auditory canal
presbyacusis
impairment of hearing resulting from old age
tinnitus
perception of ringing, hissing, or other sounds in the ears
vertigo
sensation of spinning motion
