What is the abbreviation for the photoreceptors interdigitation zone?

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Multiple Choice

What is the abbreviation for the photoreceptors interdigitation zone?

Explanation:
The photoreceptor interdigitation zone is the region where the outer segment tips of photoreceptors interdigitate with the microvilli of the retinal pigment epithelium (RPE). On OCT this appears as a distinct band at the photoreceptor/RPE boundary. The standard abbreviation for this zone is IZ (sometimes noted as PR2). This differs from the Ellipsoid Zone (EZ), which is the inner segment ellipsoid portion, and from the outer segment (OS) and inner segment (IS) layers themselves. So IZ is the correct abbreviation for the photoreceptors interdigitation zone.

The photoreceptor interdigitation zone is the region where the outer segment tips of photoreceptors interdigitate with the microvilli of the retinal pigment epithelium (RPE). On OCT this appears as a distinct band at the photoreceptor/RPE boundary. The standard abbreviation for this zone is IZ (sometimes noted as PR2). This differs from the Ellipsoid Zone (EZ), which is the inner segment ellipsoid portion, and from the outer segment (OS) and inner segment (IS) layers themselves. So IZ is the correct abbreviation for the photoreceptors interdigitation zone.

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