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Optician ABO - Lesson 1-12 Questions with correct answers
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Optician ABO - Lesson 1-12 Questions with correct answers
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Optician ABO - Lesson 1-12ophthalmologist - CORRECT ANSWER-examine and treat eye problems and to
perform eye surgery
optometrist - CORRECT ANSWER-examine and treat eye problems, fit and
prescribe glasses and contact lenses, and prescribe visual therapy and
low-vision aids
optician - CORRECT ANSWER-specialist who fills prescriptions for lenses
Cornea - CORRECT ANSWER-The clear tissue that covers the front of the eye
Sclera - CORRECT ANSWER-the white part of the eye that forms the orbit
Conjunctivitis - CORRECT ANSWER-Infection of the outer layer of the eye
causing pink eye
Iris - CORRECT ANSWER-colored part of the eye around the pupil and controls
the size of the pupil opening
lens - CORRECT ANSWER-the transparent structure behind the pupil that
changes shape to help focus images on the retina
the front of the eye - CORRECT ANSWER-Cornea
Iris
Pupil
Lens.
Five layers of the cornea - CORRECT ANSWER-Epithelium
Bowman's membrane
Stroma
Descemet's membrane
Endothelium
,Epithelium - CORRECT ANSWER-This is the outer layer that protects your
cornea, and it's the one that can get scratched and be very painful if you get
contact lenses that don't fit right.
Bowman's membrane - CORRECT ANSWER-This is a layer of tough fibers that
helps protect your cornea.
Stroma - CORRECT ANSWER-This is the thickest part of your cornea, making
up almost 90% of its width.
Descemet's membrane - CORRECT ANSWER-This thin layer covers the next
layer of the cornea like a wrapper.
endothelium - CORRECT ANSWER-This is the innermost layer of the cornea. It
acts a little like a housekeeper, mopping up and getting rid of excess water that
accumulates in the cornea. Over the years, it gets less efficient, and that can lead
to hazy vision.
keratitis - CORRECT ANSWER-inflammation of the cornea
Keratoconus - CORRECT ANSWER-cone-shaped deformity of the cornea
aqueous humor - CORRECT ANSWER-fluid in the eye, found between the
cornea and the lens
Back of the eye - CORRECT ANSWER-vitreous humor
retina
macula
optic nerve
vitreous - CORRECT ANSWER-Fluid inside the eye. Helps maintain eye's shape
and holds the tissues inside the eye in place. Composed mostly of water but has
a gel like consistency.
Retina - CORRECT ANSWER-Contains sensory receptors that process visual
information and sends it to the brain
,macula - CORRECT ANSWER-responsible for fine-detail vision. Located in the
center back of the eye and is the part of the retina used when you look directly at
an object
optic nerve - CORRECT ANSWER-the nerve that carries neural impulses from
the eye to the brain
superior rectus muscle - CORRECT ANSWER-Elevates the eyes (upward
movement of the eyes)
inferior rectus muscle - CORRECT ANSWER-Depresses the eyes (downward
movement of the eyes)
The two muscles that move your eye up and down are - CORRECT
ANSWER-superior and inferior rectus muscles
The two muscles that attach to the sides of your eyes and move them
side-to-side are - CORRECT ANSWER-lateral and medial rectus muscle
Lateral - CORRECT ANSWER-which moves your eye outward
Midial - CORRECT ANSWER-moves it inward (toward your nose)
inferior oblique muscle - CORRECT ANSWER-eye rolls, looks up and laterally
superior oblique muscle - CORRECT ANSWER-depresses eye and turns it
laterally
myopia - CORRECT ANSWER-nearsightedness
hyperopia - CORRECT ANSWER-farsightedness; difficulty seeing close objects
when light rays are focused on a point behind the retina
astigmatism - CORRECT ANSWER-defective curvature of the cornea or lens of
the eye
presbyopia - CORRECT ANSWER-impaired vision as a result of aging
, emmetropia - CORRECT ANSWER-normal vision
Anisometropia - CORRECT ANSWER-significant unequal refractive error
between two eyes
amblyopia - CORRECT ANSWER-(lazy eye) occurs when these muscles can't
work together in the right way to focus both eyes on a target
strabismus - CORRECT ANSWER-Crossed eyes resulting from a weakness in
eye muscles
strabismus takes many forms. The four common variants are - CORRECT
ANSWER-Esotropia
Extropia
Hpertropia
Hypotropia
esotropia - CORRECT ANSWER-turning the eye inward toward the nose
exotropia - CORRECT ANSWER-outward turning of the eye, away from the nose
hypertropia - CORRECT ANSWER-eyes pointing upward
hypotropia - CORRECT ANSWER-eyes pointing downward
vision therapy - CORRECT ANSWER-include computer programs, lenses,
prisms, eye patches, and eye-hand coordination exercises.
cataract - CORRECT ANSWER-clouding of the lens of the eye
Glaucoma - CORRECT ANSWER-increased intraocular pressure results in
damage to the retina and optic nerve with loss of vision
Pachymetry - CORRECT ANSWER-Measurement of corneal thickness.
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