Certified Ophthalmic Assistant Practice Exam

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Study for the Certified Ophthalmic Assistant Exam. Access multiple choice questions that reflect actual exam content and receive hints and explanations for each question. Prepare effectively and embark on your path to certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is important to ensure regarding contact lens fitting over corneal curvature?

Touching the conjunctival surface
Rests on the cornea
Is supported by the eyelids
Floats on the tear film

The correct answer is: Rests on the cornea

When fitting a contact lens, it is crucial that the lens properly rests on the cornea. This is because the corneal curvature is essential for achieving adequate vision correction and comfort. A lens that is correctly positioned on the cornea allows for optimal alignment with the eye's surface, facilitating the appropriate tear film distribution underneath. This positioning helps to ensure that the lens moves slightly with each blink, promoting tear exchange and maintaining comfort throughout the day. Proper corneal fitting also helps to minimize complications such as lens displacement, discomfort, or corneal irritation that could arise from poor fit. In essence, the health and performance of the lens significantly depend on its correct placement on the corneal surface, leading to clearer vision and a comfortable wearing experience.