Certified Ophthalmic Medical Technologist (COMT) Practice Exam

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Prepare for the Certified Ophthalmic Medical Technologist Exam with comprehensive quizzes and study materials. Each question provides insights and explanations to enhance your understanding. Get ready to excel in your certification journey!

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How long should a patient refrain from wearing rigid gas-permeable contact lenses before measurements for cataract surgery?

1 week
2 weeks
3 weeks
4 weeks

The correct answer is: 2 weeks

In preparing a patient for cataract surgery, it is essential to ensure accurate measurements of the eye's anatomy to determine the appropriate intraocular lens (IOL) power. Rigid gas-permeable (RGP) contact lenses can induce changes in the corneal shape, which may affect these measurements. Refraining from wearing RGP lenses for at least two weeks allows sufficient time for the cornea to return to its natural shape and reduce any potential distortion caused by the lenses. This timeframe is commonly recommended in clinical practice to enhance the precision of pre-operative assessments. While some sources might suggest longer periods for certain types of contact lenses, two weeks specifically strikes a balance between allowing for corneal recovery and minimizing the discomfort or inconveniences associated with extended downtime for contact lens wearers. This makes it generally accepted and practical advice for patients undergoing cataract surgery.