Vitreomacular Traction

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Vitreomacular Traction

10.1 Features Vitreomacular traction (VMT) is characterized by an incomplete posterior vitreous detachment and persistent adherence between the posterior hyaloid and the retinal surface causing architectural changes of the neurosensory retina…

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Lattice Degeneration

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Lattice Degeneration

17.1 Features Lattice degeneration is a peripheral retinal condition in which there is retinal thinning, possible hyalinization of retinal vessels creating a “lattice” appearance, and increased vitreoretinal adhesion. Patients with lattice…

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Retinal Dialysis

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Retinal Dialysis

14.1 Features A retinal dialysis is defined histologically and clinically as a separation between the neurosensory retina and the nonpigmented pars plana epithelium at the ora serrata (▶ Fig. 14.1). While…

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Intraoperative Optical Coherence Tomography

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Intraoperative Optical Coherence Tomography

5.1 Diagnostic/Technology Overview Intraoperative optical coherence tomography (OCT) allows the surgeon to view the surgical field from a different perspective than a standard ophthalmic microscope. Intraoperative OCT offers excellent resolution for…

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Posterior Vitreous Detachment

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Posterior Vitreous Detachment

7.1 Features Posterior vitreous detachment (PVD) is the separation between the posterior vitreous cortex and the internal limiting membrane of the retina. Usually it occurs after the fifth decade of life,…

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Fluorescein Angiography

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Fluorescein Angiography

2.1 Diagnostic/Technology Overview Sodium fluorescein is an orange–red hydrocarbon molecule that circulates in the vasculature, 80% protein bound and 20% nonprotein bound. Nonprotein bound fluorescein will diffuse through fenestrated and leaky…

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Retinal Tears and Holes

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Retinal Tears and Holes

11.1 Features Retinal breaks are any full thickness disruption in the sensory retina providing a conduit for fluid to enter the potential space between the sensory retina and retinal pigment epithelium…

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Case Studies

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Case Studies

Case Studies 8 INNER RETINAL PATHOLOGY Nonproliferative Diabetic Retinopathy CASE 1 History 57-year-old black male presents for a diabetic eye exam. Type 2 diabetes mellitus x 10 years. Blood sugar…

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Terminology

Mar 24, 2020 by in OPHTHALMOLOGY Comments Off on Terminology

Terminology 4 EN FACE PROJECTION Two-dimensional views of segmented tissue layers (Figure 4-1). Figure 4-1. En face projection. SEGMENTATION Separation of volumetric flow information into anatomic layers (Figure 4-2). Figure…

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