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28 Cards in this Set

  • Front
  • Back
Lines that represent areas of tear pooling with deposition of iron from the tears in the basal epi.
Iron Lines
Normal iron line in the horiz. lower third of the cornea where lid closure occurs
Iron line seen at the base of keratoconus
Fleischer ring
Iron line seen central to a pterygium
Iron line seen at the leading edge of a filtering bleb
Found central to radial keratotomy incisions
Iron Line
Deposits first in Descemet's then Bowman's and then intervening stroma.
Corneal Arcus
Degenerative accumulation of pre-Descemet's fine particles that resemble cream of wheat.
Cornea Farinata
Descemet's stria is related to corneal hypoxia due to:
(1) age
(2) keratoconus
(3) diabetes mellitus
Fibrovascular membrane triangular in shape and has a grayish central avascular edge.
Appearance of spherical, golden-brown subepi. material most common to those exposed to UV and trauma.
Spheroid Degeneration
Punctate and linear transparent deposits at the depth of the stroma in patients 40 to 60 years old.
amyloid degeneration
Whitish, sub-epithelial nodular opacities that may occur in any area of the cornea, usually at or adjacent to previous conreal conditions as trachoma or phlyctenulosis.
Salzmann's Degeneration
Originates near the limbus in the nasal and temporal interpalpebral zone and moves centrally. Small holes in Bowman's layer (nerves pass through) give appearance of Swiss cheese.
Band Keratopathy
Deposition of calcium salts and calcification of Bowman's layer can occur as a result of local inflammation, topical ophthalmic medications and systemic disorders that cause hypercalcemia.
Band Keratopathy
Where a metallic corneal foreign body has been located, a subepi. or anterior stromal circular white ring with a granular appearance is observed.
Coat's White Ring
Non-inflammatory superior peripheral corneal thinning with tan or yellow-white area of opacification involving the corneal epi. with superficial vascularization. Common in 50 older but can be seen in teen years and 20's & 30's.
Terrien marginal degeneration
Thinning may spread circumferentially or central or both and cause significant astigmatism. Treatment to reduce astigmatism.
Terrien marginal degeneration
Marginal thinning seen in the anterior peripheral cornea. Occurs superiorly or inferiorly between the arcus and limbus. Age related. NO inflammation or vascularization.
Age-Related Marginal Degeneration
Inferior peripheral corneal thinning and usually persists as decreased vision assoc. with ATR. Resemble unusual form keratoconus. Spectacles or CL correction NOT helpful.
Pellucid Marginal Degeneration
Recurrent ocular inflammation usually at inferior limbus and is associated with superficial corneal inflammation.
Fuch's Superficial Marginal Keratitis
Inflammation adjacent to area of pseudopterygium formation overlying corneal thinning. NO lipid deposition. Treat with corticosteroids.
Fuch's Superficial Marginal Keratitis
Lipid deposition can occur in a cornea with ____________.
Stromal vascularization
Impediments to epithelial healing.
(1) Damage or disruption of Bowman's
(2) Damage to superficial stroma
(3) inflammation
(4) EBMD
Non-traumatic cause impeding epithelial healing.
(1) EBMD
(2) superficial stromal dystrophies
(3) corneal edema
(4) herpetic infections
(5) diabetes
(6) epidermolysis bullosa
(7) Cockayne syndrome
Loss of sensory corneal innervation by the nasociliary branch of the ophthalmic nerve (V).
Neuroparalytic keratitis
Neuroparalytic keratitis results in:
(1)corneal haze
(2)conjunctival hyperemia
(3)epithelial defects
(4)anterior segment inflammation
(5) corneal melting
(6) vascularization
(7) perforation
OCcurs due to forceps delivery of prolonged labor. Single or multiple usually vertical oriented breaks in Descemet's membrane.
Rupture of Descemet's membrane.