WorksheetsACCOMMODATION
Total questions: 20
Worksheet time: 15mins
What is accommodation in the context of the eye?
a) The ability to adjust the size of the pupil
b) The process by which the eye changes its refractive power to focus on near or distant objects
c) The adaptation of the retina to different light intensities
d) The alignment of both eyes to focus on a single object
Which part of the eye is primarily responsible for accommodation?
a) Cornea
b) Retina
c) Crystalline lens
d) Optic nerve
Which muscle is directly involved in the process of accommodation?
a) Orbicularis oculi
b) Ciliary muscle
c) Rectus muscle
d) Levator palpebrae superioris
How does the lens change when the eye focuses on a near object?
a) It becomes thinner
b) It remains the same
c) It becomes thicker
d) It flattens
What happens to the zonules of Zinn during accommodation for near vision?
a) They contract, pulling the lens into a flat shape
b) They relax, allowing the lens to become more convex
c) They tighten, increasing the lens curvature
d) They remain in a fixed position
Which of the following methods is commonly used to measure accommodation?
a) AR
b) Ophthalmoscopy
c) Push-up test
d) Visual acuity test
What is presbyopia?
a) A condition where the eye cannot focus on distant objects
b) A condition where the lens becomes more flexible
c) The gradual loss of the eye’s ability to focus on near objects with age
d) A refractive error due to an irregularly shaped cornea
What is the normal range of amplitude of accommodation in young adults?
a) 1–2 diopters
b) 4–5 diopters
c) 10–12 diopters
d) 15–20 diopters
Which anomaly is characterized by an inability to focus on both near and distant objects due to unequal refractive power in the two eyes?
a) Myopia
b) Hyperopia
c) Astigmatism
d) Anisometropia
In which condition does accommodation no longer occur effectively due to age-related stiffening of the lens?
a) Hyperopia
b) Myopia
c) Presbyopia
d) Amblyopia
Which of the following is a possible treatment for presbyopia?
a) LASIK surgery
b) Bifocal or multifocal lenses
c) Contact lenses for astigmatism
d) Orthokeratology
What is the name of the reflex that coordinates the contraction of the ciliary muscles and pupil constriction during accommodation?
a) Pupillary light reflex
b) Near reflex (Accommodation reflex)
c) Corneal reflex
d) Blink reflex
What is the main cause of presbyopia?
a) Elongation of the eyeball
b) Rigidity of the lens
c) Weakness of the ciliary muscles
d) Irregular corneal shape
Which of the following conditions is NOT an anomaly of accommodation?
a) Myopia
b) Accommodative spasm
c) Accommodative insufficiency
d) Presbyopia
What effect does aging have on the amplitude of accommodation?
a) It increases
b) It remains constant
c) It decreases
d) It becomes erratic
Which is not a type of convergence?
Tonic convergence
Accommodative convergence
Reflex convergence
Preaxial convergence
High AC/A ratio seen in
Divergent squint
convergent squint
Convergence excess
accommodating on near obiect
Which of the following is not a measuring method of AC/A ratio
Hetrophoria method
Fixation disparity method
Haloscopic method
Gradient method
Normal AC/A ratio is
(a)
AC= IPD +An-Ad/d
Correct
Wrong
