OSC Ophthalmic Scribe Certification Exam
2025 – Complete Question Bank with Verified
Answers | Pass the JCAHPO Exam with
Confidence
Aberration - ANSW✔-the failure of a refraction surface or lens to produce an exact point-to-point
correspondence between an object and its image
Accommodation - ANSW✔-adjustment by the eye for seeing at different distances, accomplished by
changing the shape of the crystalline lens through action of the ciliary muscle
Albinism - ANSW✔-a hereditary absence of pigment in the skin, hair, iris, and retina; usually associated
with a loss of visual acuity, nystagmus and photophobia; often accompanied by refractive errors
amblyopia - ANSW✔-decreased visual acuity without any apparent disease of the eye
ametropia - ANSW✔-any optical error in the eye that can be corrected by glasses or contact lens
anterior chamber - ANSW✔-the aqueous-filled space in the forward portion of the eye, bounded in
front by the cornea and behind the iris
aphakia - ANSW✔-absence of the crystalline lens of the eye
aqueous - ANSW✔-clear, watery fluid which fills the anterior chamber of the eye
, aspheric lens - ANSW✔-a non-spherical lens, n which the radii of curvature increase towards the
periphery rather than remaining equal at all points. aspheric lenses reduce optical aberration and
improve resolution
asthenopia - ANSW✔-ocular fatigue caused by tiring of the muscles in or around the eye
astigmatism - ANSW✔-a refractive error in which light rays fail to come to a single focus on the retina
because of differing amounts of refraction in the various meridians of the eye
bifocal - ANSW✔-lens with two optical zones, one for near vision and one for distance vision
binocular vision - ANSW✔-the ability to use both eyes simultaneously to focus on the same object and
to fuse the images from both eyes into a single image
biomicroscope - ANSW✔-see slit lamp
blindness (legal definition) - ANSW✔-having central visual acuity of 20/200 of less in the better eye
after correction or having visual acuity of better than 20/200 but having a visual field of no greater than
20 degrees
canthus - ANSW✔-the angle formed by the meeting of the upper and lower eyelids; specified as outer
or temporal, and inner or nasal
cataract - ANSW✔-a clouding of the crystalline lens of the eye or its capsule, or both, with consequent
loss of visual acuity
chalazion - ANSW✔-inflammatory enlargement of a meibomian gland in the eye
choriorentintis - ANSW✔-inflammation of the choroid and retina
2025 – Complete Question Bank with Verified
Answers | Pass the JCAHPO Exam with
Confidence
Aberration - ANSW✔-the failure of a refraction surface or lens to produce an exact point-to-point
correspondence between an object and its image
Accommodation - ANSW✔-adjustment by the eye for seeing at different distances, accomplished by
changing the shape of the crystalline lens through action of the ciliary muscle
Albinism - ANSW✔-a hereditary absence of pigment in the skin, hair, iris, and retina; usually associated
with a loss of visual acuity, nystagmus and photophobia; often accompanied by refractive errors
amblyopia - ANSW✔-decreased visual acuity without any apparent disease of the eye
ametropia - ANSW✔-any optical error in the eye that can be corrected by glasses or contact lens
anterior chamber - ANSW✔-the aqueous-filled space in the forward portion of the eye, bounded in
front by the cornea and behind the iris
aphakia - ANSW✔-absence of the crystalline lens of the eye
aqueous - ANSW✔-clear, watery fluid which fills the anterior chamber of the eye
, aspheric lens - ANSW✔-a non-spherical lens, n which the radii of curvature increase towards the
periphery rather than remaining equal at all points. aspheric lenses reduce optical aberration and
improve resolution
asthenopia - ANSW✔-ocular fatigue caused by tiring of the muscles in or around the eye
astigmatism - ANSW✔-a refractive error in which light rays fail to come to a single focus on the retina
because of differing amounts of refraction in the various meridians of the eye
bifocal - ANSW✔-lens with two optical zones, one for near vision and one for distance vision
binocular vision - ANSW✔-the ability to use both eyes simultaneously to focus on the same object and
to fuse the images from both eyes into a single image
biomicroscope - ANSW✔-see slit lamp
blindness (legal definition) - ANSW✔-having central visual acuity of 20/200 of less in the better eye
after correction or having visual acuity of better than 20/200 but having a visual field of no greater than
20 degrees
canthus - ANSW✔-the angle formed by the meeting of the upper and lower eyelids; specified as outer
or temporal, and inner or nasal
cataract - ANSW✔-a clouding of the crystalline lens of the eye or its capsule, or both, with consequent
loss of visual acuity
chalazion - ANSW✔-inflammatory enlargement of a meibomian gland in the eye
choriorentintis - ANSW✔-inflammation of the choroid and retina
