ABO ADVANCED EXAMINATION TEST 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ Irregular astigmatism. Answer: A refractive condition caused by a
cornea which is damaged and irregular so that rays of light come to
many focal points on the retina; is not correctable by cylinders.
◉ posterior chamber. Answer: space between the back of the iris and the
front of the vitreous chamber; filled with aqueous humor
◉ Rods. Answer: retinal receptors that detect black, white, and gray;
necessary for peripheral and twilight vision, when cones don't respond
◉ Hyperphoria. Answer: Tendency for the eye to turn upward when both
eyes are fixating on ab object; controlled by fusion.
◉ anisometropia. Answer: significant unequal refractive error between
two eyes
◉ presbyopia. Answer: farsightedness caused by loss of elasticity of the
lens of the eye, occurring typically in middle and old age.
,◉ Myopia (nearsightedness). Answer: a condition resulting from a
refractive error in which light rays entering the eye are brought into
focus in front of the retina.
◉ Compound hyperopic astigmatism. Answer: The refractive error
which results in two points of focus falling behind the retina.
◉ sclera and cornea. Answer: two regions of the fibrous tunic
◉ vitreous humor. Answer: jellylike substance found behind the lens in
the posterior cavity of the eye that maintains its shape
◉ Esophoria. Answer: the eye turns in when the client is not focusing on
an object
◉ Index of refraction Cornea. Answer: 1.37
◉ Fusion occurs. Answer: in the brain
◉ Epithelium. Answer: Outermost layer of the cornea, highly
regenerative
◉ accomadation. Answer: the ability of the lens to adjust shape to
facilitate focusing
, ◉ farsighted eye. Answer: the eye is too short, the light rays focus
behind the retina, blurry close up, hyperopic
◉ astigmatism. Answer: a condition in which the eye does not focus
properly because of uneven curvatures of the cornea
◉ amblyopia. Answer: loss of vision not due to any disease; not
correctable with glasses; persons with amblyopia wear a patch over one
eye to force affected eye to work; commonly called lazy eye
◉ Number of muscles attached to the eye. Answer: 6 extraocular
muscles
◉ cataract. Answer: clouding of the internal lens of the eye
◉ Cones. Answer: retinal receptor cells that are concentrated near the
center of the retina and that function in daylight or in well-lit conditions.
The cones detect fine detail and give rise to color sensations.
◉ ametropia. Answer: Any condition that keeps light from focusing
directly on the retina.
◉ +.50-.75x10 corrects what condition. Answer: mixed astigmatism
QUESTIONS WITH ANSWERS GRADED A+
◉ Irregular astigmatism. Answer: A refractive condition caused by a
cornea which is damaged and irregular so that rays of light come to
many focal points on the retina; is not correctable by cylinders.
◉ posterior chamber. Answer: space between the back of the iris and the
front of the vitreous chamber; filled with aqueous humor
◉ Rods. Answer: retinal receptors that detect black, white, and gray;
necessary for peripheral and twilight vision, when cones don't respond
◉ Hyperphoria. Answer: Tendency for the eye to turn upward when both
eyes are fixating on ab object; controlled by fusion.
◉ anisometropia. Answer: significant unequal refractive error between
two eyes
◉ presbyopia. Answer: farsightedness caused by loss of elasticity of the
lens of the eye, occurring typically in middle and old age.
,◉ Myopia (nearsightedness). Answer: a condition resulting from a
refractive error in which light rays entering the eye are brought into
focus in front of the retina.
◉ Compound hyperopic astigmatism. Answer: The refractive error
which results in two points of focus falling behind the retina.
◉ sclera and cornea. Answer: two regions of the fibrous tunic
◉ vitreous humor. Answer: jellylike substance found behind the lens in
the posterior cavity of the eye that maintains its shape
◉ Esophoria. Answer: the eye turns in when the client is not focusing on
an object
◉ Index of refraction Cornea. Answer: 1.37
◉ Fusion occurs. Answer: in the brain
◉ Epithelium. Answer: Outermost layer of the cornea, highly
regenerative
◉ accomadation. Answer: the ability of the lens to adjust shape to
facilitate focusing
, ◉ farsighted eye. Answer: the eye is too short, the light rays focus
behind the retina, blurry close up, hyperopic
◉ astigmatism. Answer: a condition in which the eye does not focus
properly because of uneven curvatures of the cornea
◉ amblyopia. Answer: loss of vision not due to any disease; not
correctable with glasses; persons with amblyopia wear a patch over one
eye to force affected eye to work; commonly called lazy eye
◉ Number of muscles attached to the eye. Answer: 6 extraocular
muscles
◉ cataract. Answer: clouding of the internal lens of the eye
◉ Cones. Answer: retinal receptor cells that are concentrated near the
center of the retina and that function in daylight or in well-lit conditions.
The cones detect fine detail and give rise to color sensations.
◉ ametropia. Answer: Any condition that keeps light from focusing
directly on the retina.
◉ +.50-.75x10 corrects what condition. Answer: mixed astigmatism
