Tag Archive | Macular

Chapter 187 – Differentiation of Optic Nerve from Retinal Macular Disease

Chapter 187 – Differentiation of Optic Nerve from Retinal Macular Disease   ALFREDO A. SADUN           DEFINITION • Optic nerve disease involves injury of the retinal ganglion cells and hence the axons that constitute the optic nerve, whereas macular disease involves injury to the retina in the fovea and parafoveal areas. […]

Chapter 132 – Coexistent Optic Nerve and Macular Abnormalities

Chapter 132 – Coexistent Optic Nerve and Macular Abnormalities   GARY C. BROWN MELISSA M. BROWN           DEFINITION • A heterogeneous group of optic nerve disorders that have secondary pathological effects on the macular retina.   KEY FEATURES • Structural changes of the optic nerve. • Secondary retinal detachment, retinoschisis, or […]

Chapter 128 – Macular Hole

Chapter 128 – Macular Hole   JAY S. DUKER           DEFINITION • A full-thickness depletion of the neural retinal tissue in the center of the macula.   KEY FEATURES • Central scotoma. • Round, central neural retinal tissue defect. • Cystic retinal changes in the perifoveolar area that surrounds the macular […]

Chapter 125 – Age-Related Macular Degeneration

Chapter 125 – Age-Related Macular Degeneration   ADAM MARTIDIS MATTHEW T. S. TENNANT           DEFINITION • A common, chronic degenerative disorder of unknown pathogenesis that affects older individuals and features central visual loss as a result of geographical atrophy, serous detachment of the retinal pigment epithelium, and choroidal neovascularization.   KEY […]

Chapter 109 – Macular Dystrophies

Chapter 109 – Macular Dystrophies   KIMBERLY DRESNER KENT W. SMALL           DEFINITION • The process of premature retinal cell aging and cell death, generally confined to the macula, in which no clear demonstrable extrinsic cause is evident, and a heritable genetically determined enzymatic defect is implicated.   KEY FEATURES • […]