Terrien Marginal Degeneration

Terrien Marginal Degeneration
SYMPTOMS Blurry vision | Often asymptomatic
SIGNS Peripheral corneal thinning, usually superior | Possible lipid deposition with neovascularization/pannus | Irregular astigmatism
WORK-UP Thorough history. Slit lamp examination. Topography
TREATMENT Observation | Vision correction with glasses or contact lenses (soft, rigid gas permeable or scleral lenses)
FOLLOW-UP Annually
ADDITIONAL LAB | TESTS Topography
ETIOLOGY Unknown
DIFFERENTIAL DX Mooren ulcer | Pellucid marginal degeneration | Dellen | Post-LASIK ectasia
NOTES There is a low risk of corneal perforation