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First Author: F.Faria Correia PORTUGAL
Co Author(s): I. Ramos B. Valbon A. Luz C. Roberts R. Ambrósio Jr
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To report the tomographic and biomechanical findings before and after treatment of a case of pressure-induced stromal keratopathy (PISK), which was misdiagnosed as diffuse lamellar keratitis (DLK).
Instituto de Olhos Renato Ambrósio, Rio de Janeiro - Brasil
Case report of a referred patient with supposed diagnosis of DLK after LASIK in the right eye. Scheimpflug-based corneal tomography and biomechanical assessment were provided by the Pentacam HR and CorVis ST (Oculus Optikgeräte GmbH, Wetzlar, Germany).
A layer of corneal opacity beneath the flap with a presumably fluid-filled interface area was observed on slit-lamp biomicroscopy. Scheimpflug image from Pentacam revealed a hypereflective area underneath the flap interface. Goldmann applanation tonometry (GAT) was 12 mmHg, while CorVis-IOP (intraocular pressure) was 53.5mmHg with deformation amplitude of 0.42mm. Two-days after starting oral and topical ocular hypotensive therapy, CorVis-IOP was 14mmHg and deformation amplitude was 1.02mm.
Ocular hypertension in PISK was associated with lower deformation response, along with steepening and thickening of the cornea.
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