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
This chapter includes related videos. Go to www.aao.org/bcscvideo_section04 or scan the QR codes in the text to access this content.
The neurosensory retina has 9 distinct histologic layers; the retinal pigment epithelium lines the outermost of these layers.
There is a correlation between the clinical appearance and the histologic location of hemorrhage and other deposits in the retina.
Two vascular sources supply the retina: the retinal circulation supplies the inner layers, and the choroidal circulation supplies the outer layers. Ischemic events involving either vascular source lead to atrophy and thinning of the corresponding retinal layers supplied.
The retina heals with a fibroglial scar.
In many cases of infantile abusive head trauma, histologic abnormalities can be identified in the retina.
Retinoblastoma is the most common primary intraocular malignancy in children and has characteristic histologic features.
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.