Michael Wellington Belin

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Keratoconus and other noninflammatory corneal thinning disorders (keratoglobus, pellucid marginal degeneration and posterior keratoconus) are characterized by progressive corneal thinning, protrusion and scarring; the result is distorted and decreased vision. The etiology and pathogenesis of these disorders are unknown but may be associated with a variety(More)
BACKGROUND The recent availability of genetic analyses has demonstrated the shortcomings of the current phenotypic method of corneal dystrophy classification. Abnormalities in different genes can cause a single phenotype, whereas different defects in a single gene can cause different phenotypes. Some disorders termed corneal dystrophies do not appear to(More)
PURPOSE To report indications, practices, complications, and outcomes from the first multicenter study on the Boston Type 1 keratoprosthesis. DESIGN Prospective, noncomparative, interventional case series. PARTICIPANTS We analyzed 141 Boston Type 1 keratoprosthesis surgical procedures, from 17 surgical sites, done from January 2003 through September(More)
PURPOSE To describe pachymetric progression indices (PPI) of the Pentacam HR (Oculus Optikgeräte GmbH) and the concept of relational thickness, and to test their accuracy for differentiating keratoconic and normal corneas compared with single-point thickness values. METHODS One hundred thirteen individual eyes randomly selected from 113 normal patients(More)
Cyclosporine (cyclosporin A, CsA) is a selective T-cell immunosuppressant that works primarily through inhibition of both antigen presentation and lymphokine production. It has dramatically improved the prognosis for solid organ transplantation. Significant nephrotoxicity has been associated with its systemic use. Topical CsA 2% was used in 11 high-risk(More)
PURPOSE To study the changes in posterior corneal elevation after laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) using Scheimpflug topography with the Pentacam anterior segment imaging system (Oculus, Inc.). SETTING Department of Ophthalmology, Albany Medical Center, and a private clinical practice, Albany, New York, USA. (More)
BACKGROUND Despite extensive knowledge regarding the diagnosis and management of keratoconus and ectatic corneal diseases, many controversies still exist. For that reason, there is a need for current guidelines for the diagnosis and management of these conditions. PURPOSE This project aimed to reach consensus of ophthalmology experts from around the world(More)
PURPOSE To describe a series of cases (Elevated Intraocular Pressure Induced Interlamellar Stromal Keratitis (PISK)) that appears to be identical to post-laser in situ keratomileusis (LASIK) diffuse lamellar keratitis (DLK), but was present at a later time frame and was associated with a significant elevation of intraocular pressure (IOP). Unlike DLK, this(More)
The increased frequency of refractive surgery and the shift towards the correction of higher-order aberrations necessitates a more detailed understanding of corneal shape. Early topography systems were based on Placido technology, as this was initially more intuitive for the general refractive surgeon. Newer computerized corneal modelling has increased our(More)
PURPOSE To report a case of progressive corneal ectasia after LASIK with no detectable preoperative risk factors and to present three-dimensional corneal tomographic and biomechanical findings on the contralateral unoperated eye that would be considered low risk for ectasia and thereby a good LASIK candidate based on the Randleman Ectasia Risk Score System(More)