Ectatic disorders associated with a claw-shaped pattern on corneal topography  

Oleh:

Lee, Brandon W. ; Jurkunas, Ula V ; Harissi-Dagher, Mona ; Poothullil, Antony M. ; Tobaigy, Faisal M. ; Azar, Dimitri T

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: American Journal of Ophthalmology (keterangan: ada di ClinicalKey) vol. 144 no. 01 (Jul. 2007), page 154.

Ketersediaan

Perpustakaan FK Nomor Panggil: A12.K.2007.02 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Purpose To identify clinical findings associated with claw-shaped patterns on corneal topography. Design Retrospective, observational case series. Methods Forty eyes (26 patients) with classic claw-shaped patterns on corneal topography were identified from 3,993 Orbscan II records. They were subclassified into three groups: Group 1 (pellucid marginal degeneration [PMD] or PMD suspect); group 2 (keratoconus or keratoconus suspect); and group 3 (ectasia). The refractive and topographic indices of groups 1 and 2 were compared. Results There were nine eyes (six patients) in group 1, 27 eyes (18 patients) in group 2, and four eyes (two patients) in group 3. The mean radii of maximal anterior (2.96 mm) and posterior (3.06 mm) elevation in group 1 were significantly greater than those of group 2 (1.89 mm; P = .018 and 1.72 mm; P = .022, respectively). Conclusions The claw-shaped pattern on corneal topography is not diagnostic of PMD; it is also seen in keratoconus.

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