Patient with Terrien marginal degeneration displaying superior stromal thinning with intact epithelium, overlying pannus, and lipid at the leading edge. See the related video to view a crescentic lamellar keratoplasty for Terrien marginal degeneration.Ĭontributor: Justin Risma, MD Photographer: Brice Critser, CRA Treatments include glasses, contacts and surgery. The thinning may create against-the-rule astigmatism due to its relaxing effect on the corneal curvature and patients may experience corneal perforation with mild trauma. Pellucid marginal degeneration is a progressive form of corneal ectasia that causes your cornea to thin and bulge. The thinning classically has a steep central edge and a gradually sloping peripheral edge. War-Induced Intraocular Foreign Body: Its Diagnosis and Management. Characteristic features of this disorder include peripheral stromal thinning that typically begins superiorly with intact epithelium, overlying pannus, and a leading edge of lipid. H18.712Corneal ectasia, left eye H18.713Corneal extasia, bilateral Title Pellucid Marginal Degeneration Category Corneal Opacity And Other Disorders Of Cornea Description Pellucid marginal degeneration is a condition characterized by peripheral corneal thinning and corneal ectasia. diseases include keratoconus, pellucid marginal degeneration (PMD), keratoglobus. As opposed to other causes of peripheral corneal thinning, there is typically no inflammation and the corneal epithelium remains intact. It is usually bilateral but may be asymmetric. BACKGROUND: One of the problems in the diagnosis and treatment of pellucid marginal degeneration of the cornea is the difficulty of systematizing its. Pellucid marginal degeneration is a subtle condition that could lead to corneal ectasia following laser eye surgery. Terrien marginal degeneration is a painless, slowly progressive thinning of the peripheral corneal stroma. Question: What is the proper ICD-9 code for pellucid marginal degeneration Pennsylvania Subscriber Answer: Use 371.40 ( Corneal degeneration, unspecified) to correctly code for pellucid marginal degeneration cases. He had attempted corneal GP lenses over the past few years, but complained of constant foreign body sensation and frequent lens dislodgment. Terrien Marginal Degeneration Terrien Marginal Degeneration Category(ies): Cornea A 28-year-old male who had pellucid marginal degeneration (PMD) was referred to us for a possible EyePrint custom impression-based scleral lens (EyePrint Prosthetics LLC).
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