images VI Flashcards by laura gibbons

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Early anterior ischemic optic neuropathy

no venous stasis, no bulging

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Papilledema from increased intracranial pressure…compression of optic nerve…venous stasis and decreased axoplasmic transport

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The optic nerve in anterior ischemic optic neuropathy (AION) and papilledema

in papilledema the optic nerve is swollen, and the retina is displaced laterally.

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Inner tarsal plate (p)

meibomian glands (g)

middle muscle layer (m)

surface epithelium (e)

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Meibomian gland lipid content (sebum) spills out of the acini at the mucocutaneous lid junction to coat the ocular surface. The lipid then becomes the smooth film meibum on the surface

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Stye

Acute inflammation involving gland of Zeis and/or orifice of meibomian gland….Staph…usually clears in 7 days

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Stye

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Chalazion

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Chalazion

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Lipid and granulomas of Chalazion with neutophils

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Lipid and granulomas of Chalazion with neutophils

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Xanthelasma Palpebratum

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Xanthelasma Palpebratum

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Split nevi

Very rare

Formed congenitally

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Nevus

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Sebaceous Carcinoma

pagetoid spread

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Pinguecula
Conjunctival equivalent of Solar Elastosis of skin

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Conjunctival squamous cell carcinoma

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Pterygium

CT growth that migrates to corneum

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Conjunctival Melanoma

commonly seen at limbus

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Herpes Simplex Keratitis

Painful large, irregular shaped lesions, with vascular engorgement

Can spread to ant chamber and may need corneal transplant

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Large paracentral herpes simplex virus dendritic ulcer.

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Acanthamoeba keratitis

ring like lesion

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Amebic Keratitis

double walled cyst

Amebic Keratitis double walled cyst

Amebic Keratitis

Keratoconus

Keratoconus

Keratoconus

Keratoconus

Munson’s sign When patient looks down, the cones in each eye causes the lower lids to bulge

Dry…10xs more common…no Tx

Wet…Tx with injection of VEGF antagonists into the vitreous of affected eye

leukocoria of retinoblastoma

Retinoblastoma

Retinoblastoma

Retinoblastoma

Retinoblastoma

retinoblastoma small blue cells with rosettes

retinoblastoma small blue cells with rosettes

Uveal (choroidal) melanoma

Uveal (choroidal) melanoma

Cupping as a result of increased intraocular pressure. Also present is loss of overlying retinal epithelium.

Cupping as a result of increased intraocular pressure. Also present is loss of overlying retinal epithelium.

physical blockage is sequlae of ant segment inflammtion leading to closed angle glaucoma