2020–2021 BCSC Basic and Clinical Science Course™
4 Ophthalmic Pathology and Intraocular Tumors
Part I: Ophthalmic Pathology
Chapter 11: Retina and Retinal Pigment Epithelium
Degenerations
The clinical features of various retinal degenerations are discussed in BCSC Section 12, Retina and Vitreous.
Typical and Reticular Peripheral Cystoid Degeneration and Retinoschisis
In typical peripheral cystoid degeneration (TPCD), which is a universal finding in the eyes of individuals older than 20 years, cystoid spaces develop in the OPL of the retina. In reticular peripheral cystoid degeneration (RPCD), which is less common than TPCD, cystoid spaces develop in the NFL, posterior to areas of TPCD (Fig 11-11). Coalescence of the cystoid spaces of TPCD forms typical degenerative retinoschisis, usually in the inferotemporal region. In reticular degenerative retinoschisis, the retinal layers split in the NFL.
Excerpted from BCSC 2020-2021 series: Section 4 - Ophthalmic Pathology and Intraocular Tumors. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.