Ocular Adnexa
The eyelid, eyelashes, eyebrow, lacrimal apparatus,
Emmetropia
The state of refraction of the eye in which parallel rays, when the eye is at rest, are focused exactly on
the retina.
Optical Infinity
20 feet
Biomicroscope
Tabletop microscope for examining the cornea, lens and otherwise clear fluids and membranes to be
examined in layer by layer detail.
Keratometer
An instrument used to measure the curvature of the cornea.
Opthalmoscope
An instrument used to examine the interior of the eye
Lensometer
device for obtaining eyeglass prescriptions
OCT
Optical Coherence Tomography
Mydriatic Drop
Placed into the eyes to produce temporary paralysis, forcing pupils to remain dilated
Hyphema (hi-fee-mah)
blood in anterior chamber of the eye, as seen during the fundoscopic exam
Hypopyon (hi-poh-pee-on)
pus in the anterior chamber of the eye
, Idopsin
The light sensitive pigment in Cones.
Krause Gland
Located underneath eyelid. Produces tears which are secreted onto the surface of the conjunctiva.
Meibomian Gland
responsible for the supply of meibum, an oily substance that prevents evaporation of the eye's tear
film.
Trichromat
"Normal" color vision
Legal Blindness
20/200
Simple Myopic Astigmatism
The refractive condition where one point of focus falls on the retina and the other point of focus falls
in front of the retina.
Compound Myopic Astigmatism
the refractive error which results in two point of focus falling in front the retina example: -1.00 -
2.00x090
Mixed Astigmatism
The refractive condition in which light comes to two points of focus where one point is in front of the
retina, and the other is behind it.
Simple hyperopic astigmatism
one meridian focuses on the retina while the other, in theory, focuses behind the retina
Amblyopia
a dimness of vision or the partial loss of sight, especially in one eye, without detectable disease of the
eye