Alterations of Extracellular Matrix Components and Proteinases in Human Corneal Buttons With INTACS for Post-Laser In Situ Keratomileusis Keratectasia and Keratoconus
نویسندگان
چکیده
منابع مشابه
Keratectasia induced by laser in situ keratomileusis in keratoconus.
PURPOSE Corneal thinning disorders weaken the mechanical strength of affected corneas, suggesting that photorefractive procedures may be contraindicated in keratoconus. Few cases have been reported to confirm this hypothesis. METHODS A 45-year-old man had two laser in situ keratomileusis (LASIK) procedures and one photorefractive keratectomy (PRK) performed on his left eye, and three LASIK pr...
متن کاملCorneal Collagen Crosslinking for Keratectasia after Laser in situ Keratomileusis: A Review of the Literature
Corneal ectasia is a serious vision-threatening complication of laser in situ keratomileusis (LASIK). It is associated with progressive corneal steepening, an increase in myopia and astigmatism, and decrease in uncorrected visual acuity. Before LASIK presence of risk factors (corneal thickness, refractive error, presence of clinical and subclinical corneal pathologies) should be studied so pati...
متن کاملManagement of corneal ectasia after laser in situ keratomileusis with INTACS.
PURPOSE To evaluate the safety and efficacy of intrastromal corneal ring segments (ICRS, INTACS, Keravision) for the correction of corneal ectasia after laser in situ keratomileusis (LASIK). METHODS In this prospective, noncomparative case series, INTACS were implanted in three eyes (two patients) that were ectatic after LASIK. Mean follow-up was 8.7 months (range, 8 to 10 mo). RESULTS No i...
متن کاملIntracorneal ring segment implantation in corneas with post-laser in situ keratomileusis keratectasia.
PURPOSE To evaluate the refractive and aberrometric changes in corneas with post-LASIK keratectasia implanted with intracorneal ring segments (ICRS) during a 2-year follow-up. DESIGN Retrospective, consecutive case series. PARTICIPANTS Thirty-four eyes of 25 patients (age range, 20-59 years) with post-LASIK ectasia were included. Ectasia was diagnosed by slit-lamp appearance of corneal thin...
متن کامل[Post-laser in situ keratomileusis refractive changes induced by glaucoma in the absence of keratectasia].
CASE REPORT We report the case of a 34 year-old man with progressive loss of visual acuity in his left eye, who was diagnosed with pigmentary glaucoma with an intraocular pressure of 32mmHg. Eight years previously, the patient had undergone refractive surgery (LASIK). Hypotensive treatment led to a significant refractive change accompanied by flattening of the corneal curvature. DISCUSSION We...
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ژورنال
عنوان ژورنال: Cornea
سال: 2008
ISSN: 0277-3740
DOI: 10.1097/ico.0b013e318165b1cd