Certified Ophthalmic Medical Technologist (COMT) Practice Exam

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Study for the Certified Ophthalmic Medical Technologist (COMT) Exam. Prepare with insightful quizzes and multiple-choice questions that will enhance your understanding of ophthalmic technology. Get ready for your certification with confidence!

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Which layer of the eye best conducts sound according to ultrasound biometry?

Cornea
Sclera
Ciliary body
Lens

The correct answer is: Lens

The lens of the eye is known to be the layer that best conducts sound according to ultrasound biometry. This is primarily due to its composition, which is largely made up of tightly packed, transparent proteins that facilitate the effective transmission of sound waves. The lens has a significant density compared to the other layers of the eye, which enhances its ability to transmit ultrasound energy. In contrast, while the other layers such as the cornea, sclera, and ciliary body serve important functions in the overall structure and health of the eye, they do not have the same level of sound conduction efficiency. The cornea, for instance, is primarily responsible for refracting light entering the eye and consists of a different structural composition suited for light transmission rather than sound. The sclera provides protection and structural integrity but has a fibrous nature that does not favor sound conduction. The ciliary body plays a role in the accommodation of the lens and aqueous humor production but also lacks the density required for effective sound transmission. Thus, the lens stands out as the layer that best conducts sound within the eye, making it the correct answer in the context of ultrasound biometry.