Certified Ophthalmic Assistant COA Correct
Questions & Answers(RATED A+)
20 - ANSWERHow many degrees of vision does an amsler grid measure?
A disadvantage of chemical based rigid contact lens care system is? - ANSWERIrritation
A lens with a focal length of 1m has a power of? - ANSWER1.00 Diopters
A-Scan - ANSWERDetermines the axial length of the globe.
Accommodation - ANSWERadjustment of the eye for seeing at different distances, accomplished by
changing the shape of the crystalline lens through action of the ciliary muscle.
Addies Pupil - ANSWERa tonic pupil with sluggish response to light, accommodation and
convergence.
Against the rule of astigmatism - ANSWERSteepest curvature in the horizontal meridian
Age-Related Macular Degeneration (AMD) - ANSWERLeading cause of severe, irreversible vision loss
in people over 60. It occurs when the small central portion of the retina, called the macula,
deteriorates. People will lose their central vision but can still see out of their peripheral (side) vision.
Amblyopia - ANSWERLoss of vision without any apparent disease of the eye
Aniseikonia - ANSWERA condition in which the ocular image of an object as seen by one eye differs
so much in size or shape from that seen by the other eye that the two images cannot be fused into a
single impression.
Anisometropia - ANSWERIs a condition in which there is a difference in the refractive error of the two
eyes.
, Anomalous Retinal Correspondence (ARC) - ANSWERThe condition of faulty sensory adaptation in
which the foveae of both eyes do not point in the same direction.
Anophthalmia - ANSWERAbsence of a true eyeball
Aqueous humor - ANSWERClear liquid inside the front part of our eyes between the lens and the
cornea. It nourishes the eye and keeps it inflated.
Arcus Senilia - ANSWERGrayish white ring, in the periphery of the cornea.
Aseptic Technique - ANSWERA range of procedure used in medical environments to prevent the
spread of infections.
Astigmatic Keratotomy - ANSWERA surgical technique to correct astigmatism that employs transverse
or arcuate incisions perpendicular to the steepest meridian of the cornea.
Autoimmune Disease - ANSWERa disease in which the immune system attacks the organism's own
cells
Axial length is provided by which measurement? - ANSWERAnterior corneal surface to the Retinal
surface.
Axial Ray - ANSWERA light ray that strikes the center of a lens of any shape and passes undeviated
through the lens material. Also called principal ray.
Axis - ANSWERThe meridian perpendicular to the meridian with curvature in a cylinder lens.
Axon - ANSWERThe long fiber-like portion of a ganglion cell that corses over the surface of the retina
and coverages at the optic disc.
B-Scan - ANSWERProduces a a two-dimensional cross-section through the globe. The most common
technique is the use of a handheld probe.
Binocular - ANSWERpertaining to two or both eyes
Questions & Answers(RATED A+)
20 - ANSWERHow many degrees of vision does an amsler grid measure?
A disadvantage of chemical based rigid contact lens care system is? - ANSWERIrritation
A lens with a focal length of 1m has a power of? - ANSWER1.00 Diopters
A-Scan - ANSWERDetermines the axial length of the globe.
Accommodation - ANSWERadjustment of the eye for seeing at different distances, accomplished by
changing the shape of the crystalline lens through action of the ciliary muscle.
Addies Pupil - ANSWERa tonic pupil with sluggish response to light, accommodation and
convergence.
Against the rule of astigmatism - ANSWERSteepest curvature in the horizontal meridian
Age-Related Macular Degeneration (AMD) - ANSWERLeading cause of severe, irreversible vision loss
in people over 60. It occurs when the small central portion of the retina, called the macula,
deteriorates. People will lose their central vision but can still see out of their peripheral (side) vision.
Amblyopia - ANSWERLoss of vision without any apparent disease of the eye
Aniseikonia - ANSWERA condition in which the ocular image of an object as seen by one eye differs
so much in size or shape from that seen by the other eye that the two images cannot be fused into a
single impression.
Anisometropia - ANSWERIs a condition in which there is a difference in the refractive error of the two
eyes.
, Anomalous Retinal Correspondence (ARC) - ANSWERThe condition of faulty sensory adaptation in
which the foveae of both eyes do not point in the same direction.
Anophthalmia - ANSWERAbsence of a true eyeball
Aqueous humor - ANSWERClear liquid inside the front part of our eyes between the lens and the
cornea. It nourishes the eye and keeps it inflated.
Arcus Senilia - ANSWERGrayish white ring, in the periphery of the cornea.
Aseptic Technique - ANSWERA range of procedure used in medical environments to prevent the
spread of infections.
Astigmatic Keratotomy - ANSWERA surgical technique to correct astigmatism that employs transverse
or arcuate incisions perpendicular to the steepest meridian of the cornea.
Autoimmune Disease - ANSWERa disease in which the immune system attacks the organism's own
cells
Axial length is provided by which measurement? - ANSWERAnterior corneal surface to the Retinal
surface.
Axial Ray - ANSWERA light ray that strikes the center of a lens of any shape and passes undeviated
through the lens material. Also called principal ray.
Axis - ANSWERThe meridian perpendicular to the meridian with curvature in a cylinder lens.
Axon - ANSWERThe long fiber-like portion of a ganglion cell that corses over the surface of the retina
and coverages at the optic disc.
B-Scan - ANSWERProduces a a two-dimensional cross-section through the globe. The most common
technique is the use of a handheld probe.
Binocular - ANSWERpertaining to two or both eyes
