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-metrist
One who measures
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-ptosis
Falling down drooping
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-rrhagia
Bleeding, hemorrhage
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conjuntiv/o
to bind together, conjuntiva
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emmetr/o
according to measure
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ir/o, irid/o
rainbow, iris
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nyct/o, nyctal/o
night, nocturnal
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ton/o
tone, tension, pressure
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The____________ is a small depression near the center of the retina, and is the area of the highest visual acuity.
Macula
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The term for the watery fluid in the anterior chamber of the eye is:_______________
aqueous humor
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The term for the gelatinous mass in the postreior cavity of the eye is:___________
viteous homor
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The term for the colored ring that includes smooth muscle that regulates the amount of light entering through the pupil is the:
iris
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Emmetropia is known as:
Normal eye
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Myopia is known as:
Nearsightedness, where the cornea curvature is too steep or axial length of eye is to long, light is focused short of the retina
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Hyperopia is known as:
Farsightedness, if the corneal curvature is to flat or axial length of the eye too short, image is focused behind the retina.
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Astigmatism, is know as:
Irregular corneal curvature results in light from differant axes being brought to focus at differant points.
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The conjunctiva is?
The anterior surface of the eye, and the inner surface of the eyelid.
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Lacrimal and meibomian glands do what?
Secrete tears, keep eyes moist.
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Sclera is?
The white part of the eye.
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What is the cornea?
The tranparent window of the eye.
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What is the anterior chamber?
A small narrow chamber behind the cornea.
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The anterior chamber is filled with what watery fluid?
Aqueous humor
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What is the vascular layer?
The middle layer of the eye, which is abundant with blood vessels.
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What is included in the vascular layer?
The Iris, Pupil, lens, and Chorid.
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Behind the lens is a large cavity, whats it called?
Posterior cavity.
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What is the name of the third innermost layer of the eye called?
Nervous layer
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A thin film at the back of the eye in the nervous layer, is called what?
Retina
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The retina is composed of what?
Neurons, and receptors
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Photoreceptors are know for two cells descriptive of their shape, what are they?
Rods, and Cones.
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Rods, being sensitive to very little light, enable you to see which shades?
Black and White.
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Cones, which require more light as a stimulas, enable us to do what?
See colors.
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fovea centralis, also known as central pit is what?
The area of the retina that is the site for your sharpest vision.
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The neurons which form the retina, send information out of the eye by?
The Optic nerve.
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What is the optic disk or blind spot?
The exit point of the optic nerve is an area of the retina, which lacks photoreceptors.
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What is a conjuctiva?
A protective epithelial covering.
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What is the iris?
The colored part of the vascular layer.
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What is the cornea?
The tranparent part of the fiberous layer
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What is the Sclera?
The white outter covering of the eye.
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What is the Optic nerve?
It carries information to the brain
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What is the orbit?
A boney depression that houses the eye.
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What is the Lens?
A transparent disk that changes form.
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What is Choroid?
Literally, resembling a membrane.
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What is the aqueous humor?
A watery fluid
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What is the retina?
A thin film that contains the photoreceptors.
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What is the vitreous humor?
A gelatinous mass in the posterior cavity.
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What is the fovea centralis?
The area where the vision is the best.
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Optic disk is known as the?
Blind Spot.
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Lacrimal gland does what?
Secretes tears
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Where are the meibomian glands located?
Along the edge of the eyelids.
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Ophthalmorrhagia is what?
Hemorrhage of the eye.
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Pain associated with the eye is known as?
Ophthalmalgia.
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Asthenopia is what?
Eyestrain.
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Drooping of the eyelid is known as?
Blepharoptosis
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Blepharitis is know as?
Inflammation of the eyelid.
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Corneoiritis is know as?
Inflammation of the cornea and iris.
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endophthalmitis is know as?
Inflammation of internal tissues if the eye.
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Hordeolum is what?
An infection of the meibomian gland.
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Iritis is what?
Inflammation of the Iris
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Macular degeneration is what?
Deterioration of the macula tlutea; leads to a loss of central vision.
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Nystagmus is?
Involuntary, rhythmic movements of the eye.
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ophthalmopathy is?
A general term for disease of the eye.
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Presbyopia is what?
Impaired vision due to aging.
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scleromalacia, is know as?
Softening of the Sclera.
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