Certified Diagnostic Ophthalmic Sonographer (CDOS) Practice Exam 2025 - Free CDOS Practice Questions and Study Guide

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What does a cyclodialysis cleft allow?

Direct flow of aqueous into the vitreous cavity

Direct flow of aqueous into the suprachoroidal space

A cyclodialysis cleft is an anatomical abnormality that manifests as a separation between the ciliary body and the sclera, resulting in a gap. This cleft allows for the direct flow of aqueous humor into the suprachoroidal space. The suprachoroidal space is the area between the choroid and the sclera, which serves to accommodate excess fluid and can potentially impact intraocular pressure. When aqueous humor flows into this space due to the cleft, it bypasses the normal outflow pathways, such as the trabecular meshwork, which can lead to various clinical consequences, including changes in intraocular pressure. Understanding the implications of a cyclodialysis cleft is crucial for managing conditions associated with aqueous drainage and pressure regulation within the eye.

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Restriction of aqueous outflow

Decreased intraocular pressure

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