ABO NOCE Basic-QUESTIONS WITH
ANSWERS| 2026 | 100% Correct
Abberation
Deviation from a single focus of light rays
-Chromatic abberation: distortion of optical image by dispersion of light passing through lens,
typically w/ multicolor edges
-Achromatic: Lens capable of refracting light without a rainbow effect
Accommodation
The process by which the eye's lens changes shape to focus near or far objects on the retina
Acuity
Visual expression of sharpness of vision (ex. 20/20)
Addition
Difference in plus power between the reading and distance portions of a mf lens
Amblyopia
Loss of vision not due to a disease (lazy eye umbrella)
Ametropia
Refractive error of which when the eye is resting it does not focus the image of an object on the
retina (hyperopia, myopia, and astigmatism)
Aniseikonia
, A condition in which the images seen by the two eyes differ so greatly that they cannot be fused
into a single impression
Anisometropia
A conditions in which the refractive errors of the two eyes differ significantly
Anterior Chamber
Between Iris and Cornea
Aphakia
Absence of the lens of the eye
Pseudoaphakia
An eye with a false crystalline lens
Base Curve
The degree of curvature of the FRONT SURFACE of a lens
Canthus
Angle where the upper and lower eyelids meet
Cataract
A condition in which the lens of the eye becomes opaque
Congenital: originates from birth
Hyper-mature: lens has become solid and shrunk or soft and liquid
ANSWERS| 2026 | 100% Correct
Abberation
Deviation from a single focus of light rays
-Chromatic abberation: distortion of optical image by dispersion of light passing through lens,
typically w/ multicolor edges
-Achromatic: Lens capable of refracting light without a rainbow effect
Accommodation
The process by which the eye's lens changes shape to focus near or far objects on the retina
Acuity
Visual expression of sharpness of vision (ex. 20/20)
Addition
Difference in plus power between the reading and distance portions of a mf lens
Amblyopia
Loss of vision not due to a disease (lazy eye umbrella)
Ametropia
Refractive error of which when the eye is resting it does not focus the image of an object on the
retina (hyperopia, myopia, and astigmatism)
Aniseikonia
, A condition in which the images seen by the two eyes differ so greatly that they cannot be fused
into a single impression
Anisometropia
A conditions in which the refractive errors of the two eyes differ significantly
Anterior Chamber
Between Iris and Cornea
Aphakia
Absence of the lens of the eye
Pseudoaphakia
An eye with a false crystalline lens
Base Curve
The degree of curvature of the FRONT SURFACE of a lens
Canthus
Angle where the upper and lower eyelids meet
Cataract
A condition in which the lens of the eye becomes opaque
Congenital: originates from birth
Hyper-mature: lens has become solid and shrunk or soft and liquid
