Old Material Flashcards
(49 cards)
What is Posterior Embryotoxon
Thickened anteriorly displaced Schwalbe’s Line
What to do with Posterior Embryotoxon
Check IOPs
What is Axenfeld-Reiger’s Syndrome
Bilateral posterior embryotoxon with iris attachments to the displaced Schwalbe’s line. Dental and craniofacial abnormalities present
What to do with Axenfeld-Reiger’s Syndrome
Check IOPs, screen for glaucoma
What is Peter’s Anomaly
Posterior embryotoxon with iris attachments to the line as well as anterior and central synechia. Poor prognosis
What is Marginal Furrow Degeneration
Rare idiopathic thinning between arcus and limbus; in the elderly; nonprogressive and noninflammatory
Terrien’s Marginal Degeneration
Thinning that starts superior and moves inferior with opacification and vascularization, ultimately causing curvature changes with a steepening in a sinosidual pattern
Pellucid Marginal Degeneration
Rare bilateral noninflammatory PERIPHERAL corneal thinning inferior and between 4 and 8 o clock.
Pellucid Marginal Degeneration presents like:
Anterior keratoconus
Anterior Keratoconus has degeneration that is:
Central Cornea
How is the corneal graft (PKP) different in anterior keratoconus and pellucid marginal degeneration?
Central corneal graft for keratoconus; larger graft to replace central and peripheral cornea in pellucid marginal degeneration
What is Mooren’s Ulcer
Rare autoimmune inflammatory process affecting all corneal layers, ultimately destroying half to 3/4 of the cornea; painful and can lead to blindness
How to treat Mooren’s Ulcer?
Use pred forte, cycloplegics and a bandage CL to try and promote healing and reduce inflammation
What corneal layer is affected in Meesman’s dystrophy?
Corneal epithelium
Messman’s dystrophy is?
Formation of microcysts on corneal epithelium that can rupture causing discomfort and possibly VA loss
Epithelial Basement Membrane Disorder is?
Disorder of basal lamina. Abnormal turnover and maturation of the basal lamina; may cause discomfort and VA loss
What is granular dystrophy?
Corneal stroma; Well defined grayish opacities in stroma that can eventually extend deeper in the cornea causing VA loss
What is lattice dystrophy?
Subepithelial opacities that grow and group together, eventually reducing VA and requiring PKP
What is macular dystrophy?
Rapid opacification of the cornea with severe VA loss by the 20s and 30s
Which requires immediate hospitalization: Orbital cellulitis or preseptal cellulitis?
Orbital Cellulitis
How do both orbital cellulitis and preseptal cellulitis present similiarly?
Flu like symptoms, fever, lid edema, redness, maybe some VA loss
How does orbital cellulitis present differently than preseptal cellulitis?
Fever is much higher, restricted and painful EOM movement, VA loss much more pronounced
How does preseptal cellulitis differ from orbital cellulitis?
Generally secondary to an existing infection
What is cavernous sinus thrombosis?
Cavernous sinus filling with blood; bilateral even if it starts unilateral it will spread; can have bluish area behind the ears, but looks like bilateral orbital cellulitis with some CN involvement
