MCQ on Spherical contact lens fitting

Multiple choice questions on spherical contact lens fitting-

Which of the following is NOT a factor to consider when selecting a base curve for a spherical contact lens?
a. Corneal curvature
b. Lens power
c. Lens diameter
d. Tear film quality

Which of the following methods can be used to determine the appropriate power of a spherical contact lens?
a. Retinoscopy
b. Autorefractor
c. Subjective refraction
d. All of the above
Which of the following is an important consideration when selecting the diameter of a spherical contact lens?
a. Corneal diameter
b. Pupil size
c. Lens power
d. Tear film quality

Which of the following is a common cause of discomfort when wearing spherical contact lenses?
a. Lens power that is too weak
b. Lens power that is too strong
c. Poor lens fit
d. All of the above
Which of the following is NOT a potential complication of wearing spherical contact lenses?
a. Corneal edema
b. Conjunctivitis
c. Corneal warpage
d. Retinal detachment

Which of the following is the most common material used for spherical contact lenses?
a. Silicone hydrogel
b. Fluorosilicone acrylate
c. Polymethyl methacrylate
d. Hydrogel
Which of the following is an important consideration when selecting the thickness of a spherical contact lens?
a. Lens power
b. Corneal curvature
c. Pupil size
d. Lens diameter

Which of the following is an important consideration when selecting the edge design of a spherical contact lens?
a. Corneal curvature
b. Pupil size
c. Tear film quality
d. Lens diameter
Which of the following is an important consideration when selecting the water content of a spherical contact lens?
a. Oxygen permeability
b. Lens power
c. Lens diameter
d. Edge design
Which of the following is an important consideration when selecting the modulus of a spherical contact lens?
a. Oxygen permeability
b. Lens power
c. Lens diameter
d. Tear film quality

Answers

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