Corneal ectasia is one of the most devastating complications after Laser In situ Keratomileusis (LASIK) and other refractive surgical procedures.

2008年1月1日 · Ectatic corneas are both a contraindication and an occasional consequence of LASIK. But how thin is too thin? Not all corneas are predictable. “When we started doing LASIK, we didn’t really understand that ectasia was a significant issue,” said William B. Trattler, MD.

Reported post-refractive ectasia in eyes without preoperative identifiable risk factors occurred with the following incidences: 20 per 100,000 eyes in PRK, 90 per 100,000 eyes in LASIK, and 11 per 100,000 eyes in SMILE. The rate of ectasia in LASIK was found to …

Corneal ectasia is one of the rare yet potentially devastating complications encountered after refractive surgery including laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK). This complication affects the primary desired outcome of LASIK, excellent uncorrected distance visual acuity (UDVA).

2018年12月15日 · Laser vision correction (LVC) is the most popular elective medical procedure done in the United States, and its most feared complication is the corneal failure known as ectasia. 1 LVC includes Laser In-Situ Keratomileusis (LASIK), Photorefractive Keratectomy (PRK), Small Incision Lenticule Extraction (SMILE), and other less common forms of laser...

2023年8月7日 · Post-LASIK ectasia affects up to 1 in 166 people who have LASIK eye surgery. However, ectasia can also occur after PRK and other vision correction surgeries on your cornea. Post-penetrating keratoplasty ectasia: In this case, ectasia occurs as a …

These are axial topography maps before and 1 year after CTAK in a patient with ectasia after LASIK. Preop uncorrected Snellen visual acuity and best spectacle corrected Snellen visual acuity was 20/200 and 20/30, respectively.

2005年11月23日 · In this retrospective study on 37 cases of corneal ectasia that developed after LASIK, we present a simple, reproducible scale with weighted grade of the following corneal parameters: central keratometry, oblique cylinder, pachymetry, inferior and superior corneal diopteric power value, posterior surface elevation, and the ratio of posterior to ...

2024年8月5日 · Post-LASIK corneal ectasia is a rare but serious complication that can occur after LASIK (laser-assisted in situ keratomileusis) surgery. This condition involves progressive thinning and bulging of the cornea, leading to visual disturbances and discomfort.

In this study, we report 19 patients with no pre-operative corneal risk factors who developed late onset corneal ectasia after LASIK. Nine eyes of six patients had late onset corneal ectasia with other conditions.