Vitreoretinal Diseases

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Author:
Anonymous
ID:
218614
Filename:
Vitreoretinal Diseases
Updated:
2013-05-08 17:17:34
Tags:
eye ultrasound
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Description:
Ch. 3 - Differentiation of Posterior Vitreous Detachment, Retinal Detachment, and Chorodial Detachment.
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  1. Name the Topographic findings of a PVD.
    • Smooth,
    • open funnel with or without disc or fundus insertion;
    • inserts at ora or ciliary body.
  2. Quantitative findings of PVD
    Variable spike height; <100% high at ora superiorly
  3. Kinetic (aftermovement) findings of PVD
    Marked to moderate
  4. Name the Topographic findings of a RD
    • Smooth or folded,
    • open or closed funnel with disc insertion;
    • may have associated cysts;
    • inserts at ora
  5. Quantitative findings of RD
    Steeply rising 100% high spike, including at ora superiorly
  6. Kinetic (aftermovement) findings of RD
    Moderate to None
  7. Name the Topographic findings of CD
    • Smooth,
    • dome or flat:
    • no disc insertion;
    • inserts at ora or ciliary body
  8. Quantitative findings of CD
    • Steeply rising,
    • thick,
    • double-peaked 100% high spike
  9. Kinetic (aftermovement) findings of CD
    Mild to none
  10. Lesions Simulating Retinal Detachment
    • PVD with attachment to optic nerve
    • Vitreous hemorrhage with layered blood seen inferiorly
    • Posterior hyphema
    • Bridging vitreous membrane (e.g., diabetic retinopathy)
    • Vitreoschisis
    • Premacular hemorrhage (e.g., Terson's syndrome)
    • Peripheral vitreous skirt following vitrectomy
    • Vitreous track from penetrating injury
    • Vitreous incarceration secondary to penetrating injury
    • Blood in Cloquet's canal
    • Persistant hyaloid vessels in PHPV
    • 360 degree peripheral choroidal detachments
    • Resolving choroidal detachments
    • Kissing choroidal detachments
    • Solid choroidal mass with subretinal hemorrhage
    • Retinoschisis
    • Scleral buckle with silicone band
    • Detachment of retinal pigment epithelium
  11. When do Retinal Detachments simulate other Lesions?
    • Atrophic RD
    • T-shaped RD in phakic or pseudophakic eyes
    • Tightly closed funnel-shaped RD with dense subretinal opacities
    • Peripheral annular RD after vitrectomy and panretinal photocoagulation
    • Giant retinal tear
    • Avulsion of retina from optic nerve
  12. Name Macular Lesions
    • Macular edema
    • Age-related macular degeneration (AMD)
    • RPE detachment
    • Macular hole
    • RD of macula
    • Hypotony maculopathy
    • Premacular hemorrhage
    • Staphyloma involving the macula
  13. What are some causes of Choroidal (Ciliochoroidal) Detachment?
    • Idiopathic - Uveal effusion syndrome; Nanophthalmos
    • Inflammatory - Uveitis (infectious or noninfectious); Scleritis
    • Hypotony
    • Intraocular surgery
    • Trauma
    • Intraocular tumor
    • Arteriovenous fistula
    • Renal disease
    • Toxic reactions to systemic medications
  14. What causes THICKENING of the Sclera?
    • Hyperopia
    • Choroidal folds
    • Nanophthalmos
    • Uvea effusion syndrome
    • Anterior ischemic optic neuropathy (AION)
    • Scleritis
    • Hypotony
  15. What causes THINNING of the Sclera?
    • Myopia
    • Staphyloma
    • Necrotizing scleritis
    • Plaque radiotherapy
  16. Name some specific Disorders of the Sclera.
    • Scleral rupture
    • Scleral infolding
    • Scleral calcification
    • Scleral tumor

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