Normal Eye Anatomy, PVD, Retinal Tear, and Retinal Detachment A, Normal eye anatomy. B, Posterior vitreous detachment (PVD) involves separation of the.

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Normal Eye Anatomy, PVD, Retinal Tear, and Retinal Detachment A, Normal eye anatomy. B, Posterior vitreous detachment (PVD) involves separation of the posterior vitreous from the retina as a result of vitreous degeneration and shrinkage. C, In the acute phase of PVD, as the vitreous shrinks and detaches from the retina, tractional forces may be sufficient to cause a full-thickness tear in the retina. D, When a retinal tear occurs, fluid is allowed entry into the subretinal space, which can lead to retinal detachment (separation of the neurosensory layer from the underlying retinal pigment epithelium). Source: Floaters and Flashes, The Rational Clinical Examination: Evidence-Based Clinical Diagnosis Citation: Simel DL, Rennie D. The Rational Clinical Examination: Evidence-Based Clinical Diagnosis; 2016 Available at: https://jamaevidence.mhmedical.com/DownloadImage.aspx?image=/data/books/845/sim_ch75_f001.png&sec=68735066&BookID=845&ChapterSecID=61357664&imagename= Accessed: December 23, 2017 Copyright © 2017 American Medical Association. All rights reserved