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Opthalmology Diagnostic Terms
Terms
32
Medical
Professional
09/28/2007

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Term
Abduction
Definition
outward rotation [image] [image]
Term
Adduction
Definition
Inward rotation [image]
Term
Amaurosis Fugax
Definition
fleeting blindness; temporary visual loss usually caused by retinal emboli
Term
Amblyopia
Definition
lazy eye, dimness of sight in one eye without apparent change in the eye structures. [image]
Term
Anisocoria
Definition
A condition in which the pupils are not of the same size [image]
Term
Astigmatism
Definition
refractive error in the horizontal and vertical axes differs; light rays cannot be focused due to irregular curvature of the cornea or lens [image]
Term
blepharitis
Definition
bilateral inflammation of the eyelid margins; may be ulcerative (Staphylococcal) or non ulcerative (seborrheic) [image]
Term
cataract
Definition
a lens opacity, usually bilateral; may be due to congenital or systemic disorders; often due to aging [image]
Term
Chalazion
Definition
granulomatous inflammation of a Meibomian gland; hard,nontender swelling on the upper or lower eyelid [image]
Term
Dacryocystitis
Definition
infection of the lacrimal sac due to obstruction [image]
Term
diplopia
Definition
double vision resulting from extraocular muscle imbalance
Term
episcleritis
Definition
inflammation of the episclera connective tissue [image]
Term
ectropion
Definition
outward turning of the lower lid [image]
Term
Emmetropia
Definition
objects at infinity are seen clearly with the unaccommodated eye, while objects closer are seen with the aid of accommodation
Term
Entropion
Definition
inward turning of the eyelid (usually lower lid). [image]
Term
esotropia
Definition
convergent [image]
Term
exotropia
Definition
divergent [image]
Term
Hordeolum
Definition
a Staphylococcal abscess of the upper or lower eyelid; external(A sty) smaller and on the margin; internal is a Meibomian gland abscess that points onto the conjunctival surface [image]
Term
hyperopia
Definition
(farsightedness) objects at infinity are not seen clearly unless
accommodation is used, while near objects may not be seen because
accommodation capacity is finite; light rays entering the eye are focused
behind the retina; corrected with convex lenses
Term
Keratoconjunctivitis Sicca
Definition
(dry eyes) hypofunction of lacrimal glands usually due to aging, heredity, systemic disorders, or irritants
Term
Myopia
Definition
(nearsightedness) the unaccommodated eye will focus near objects,but far objects cannot be seen without corrective concave lenses; light rays entering the eye are focused in front of the retina
Term
Nystagmus
Definition
involuntary rhythmic movements of the eyes
Term
Papilledema
Definition
edema and inflammation of the optic nerve at point of entrance into the eyeball [image]
Term
photophobia
Definition
abnormal sensitivity to light
Term
photopsia
Definition
sensation of flashing lights
Term
Pinguecula
Definition
yellow, elevated nodule on either side of the cornea in the palpebral fissure area [image]
Term
presbyopia
Definition
loss of accommodative capacity with the aging process
Term
proptosis
Definition
(exophthalmos)- protruding eyes detected by exposure of the sclera superiorly and inferiorly [image]
Term
pterygium
Definition
fleshy encroachment of the conjunctive onto the nasal side of the cornea usually associated with constant exposure to wind, sun, sand and dust [image]
Term
ptosis
Definition
drooping of the eyelid [image]
Term
scleritis
Definition
Inflammation of the sclera [image]
Term
strabismus
Definition
a manifest lack of parallelism of the visual axes of the eyes; crossed eyes.[image]
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