Conclusion

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Conclusion

Conclusion Several factors can help to differentiate between glaucomatous and nonglaucomatous optic neuropathy.1,2,3 Glaucomatous optic neuropathy is associated with: Older age. Elevated intraocular pressures. Thinner pachymetry. Visual acuity better than…

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Retinal Nerve Fiber Layer Defects

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Retinal Nerve Fiber Layer Defects

Retinal Nerve Fiber Layer Defects Overview The retinal nerve fiber layer (RNFL) is composed of retinal ganglion cell axons that are covered by astrocytes and bundled by Muller cell processes.1…

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Retinal Arteriole Diameter

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Retinal Arteriole Diameter

Retinal Arteriole Diameter Overview Progressive optic nerve damage (glaucomatous or nonglaucomatous) is associated with focal narrowing of the retinal arterioles and is proportional to the stage of the optic neuropathy.1,2,3…

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Parapapillary Chorioretinal Atrophy

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Parapapillary Chorioretinal Atrophy

Parapapillary Chorioretinal Atrophy Overview Parapapillary atrophy (PPA)1 is more frequently observed in patients with glaucoma than in those with ocular hypertension and normal individuals.2,3 The incidence of PPA has been…

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Optic Disc Hemorrhages

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Optic Disc Hemorrhages

Optic Disc Hemorrhages Overview Optic disc hemorrhages have relatively high specificity but relatively low sensitivity for glaucoma.1 These disc hemorrhages can be easily missed in routine clinical examinations,2 have proven…

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Central Retinal Vessel Trunk Location

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Central Retinal Vessel Trunk Location

Central Retinal Vessel Trunk Location Overview The distance between the central retinal vessel trunk exit location and the neuroretinal rim may contribute to the vulnerability of associated glaucomatous neuroretinal rim…

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Neuroretinal Rim Size, Shape, and Perfusion

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Neuroretinal Rim Size, Shape, and Perfusion

Neuroretinal Rim Size, Shape, and Perfusion Overview A careful evaluation of the neuroretinal rim is critical in diagnosing early glaucoma, monitoring for glaucomatous progression, and differentiating between glaucomatous and nonglaucomatous…

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Optic Cup Shape and Depth

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Optic Cup Shape and Depth

Optic Cup Shape and Depth Overview The normal shape of the optic disc is slightly vertically oval, whereas the shape of the optic cup (the excavation in the optic disc)…

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Optic Disc Shape

Oct 13, 2018 by in OPHTHALMOLOGY Comments Off on Optic Disc Shape

Optic Disc Shape Overview The normal shape of the optic disc is slightly vertically oval.1 Pearls Vertical disc diameter is about 7%-10% larger than the horizontal disc diameter. Maximal disc…

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