Optometry Terms
anterior chamber Correct Answer-fluid-filled space inside the eye
between the cornea and the iris.
aqueous humor Correct Answer-clear, watery fluid that fills the space
between the cornea and the front of the vitreous, bathing and nourishing
the lens, iris, cornea. Maintains eye (intraocular) pressure.
binocular Correct Answer-using both eyes at the same time.
blind spot Correct Answer-sightless area within the visual field of a
normal eye. Caused by absence of photoreceptors where the optic nerve
enters the eye.
blood vessel Correct Answer-an artery, a vein, or a capillary, through
which blood circulates.
choroid Correct Answer-layer of large blood vessels lying between the
retina and the sclera which provide nourishment to the retina
color blindness Correct Answer-inability to distinguish between some
colors; most common is difficulty with shades of red and green. Usually
hereditary.
cone Correct Answer-a photoreceptor used for color vision and which
provides sharp visual acuity
, conjunctiva Correct Answer-transparent mucus membrane covering the
outer surface of the eyeball (except for cornea).
cornea Correct Answer-transparent front part of eye that covers iris,
pupil, anterior chamber and provides most of an eye's optical power to
help bring rays of light to a focus on the retina.
crystalline lens Correct Answer-transparent oval tissue that also helps
bring rays of light into a focus on the retina.
depth perception Correct Answer-ability to see in 3 dimensions
diplopia Correct Answer-double vision
electromagnetic radiation Correct Answer-energy that travels and
spreads as it goes. Examples are visible light, radio waves, microwaves,
infrared, ultraviolet light, X-rays, and gamma rays
esotropia Correct Answer-condition in which eye points inward towards
the nose (cross-eyed)
exotropia Correct Answer-condition in which eye points outward
extraocular muscles Correct Answer-six muscles that move the eyeball
anterior chamber Correct Answer-fluid-filled space inside the eye
between the cornea and the iris.
aqueous humor Correct Answer-clear, watery fluid that fills the space
between the cornea and the front of the vitreous, bathing and nourishing
the lens, iris, cornea. Maintains eye (intraocular) pressure.
binocular Correct Answer-using both eyes at the same time.
blind spot Correct Answer-sightless area within the visual field of a
normal eye. Caused by absence of photoreceptors where the optic nerve
enters the eye.
blood vessel Correct Answer-an artery, a vein, or a capillary, through
which blood circulates.
choroid Correct Answer-layer of large blood vessels lying between the
retina and the sclera which provide nourishment to the retina
color blindness Correct Answer-inability to distinguish between some
colors; most common is difficulty with shades of red and green. Usually
hereditary.
cone Correct Answer-a photoreceptor used for color vision and which
provides sharp visual acuity
, conjunctiva Correct Answer-transparent mucus membrane covering the
outer surface of the eyeball (except for cornea).
cornea Correct Answer-transparent front part of eye that covers iris,
pupil, anterior chamber and provides most of an eye's optical power to
help bring rays of light to a focus on the retina.
crystalline lens Correct Answer-transparent oval tissue that also helps
bring rays of light into a focus on the retina.
depth perception Correct Answer-ability to see in 3 dimensions
diplopia Correct Answer-double vision
electromagnetic radiation Correct Answer-energy that travels and
spreads as it goes. Examples are visible light, radio waves, microwaves,
infrared, ultraviolet light, X-rays, and gamma rays
esotropia Correct Answer-condition in which eye points inward towards
the nose (cross-eyed)
exotropia Correct Answer-condition in which eye points outward
extraocular muscles Correct Answer-six muscles that move the eyeball
