Corneal biomechanical properties in normal, post-laser in situ keratomileusis, and keratoconic eyes.

Purpose: To compare the biomechanical properties of normal, post-laser in situ keratomileusis (LASIK), and keratoconic corneas evaluated by corneal hysteresis and the corneal resistance factor measured with the Reichert Ocular Response Analyzer (ORA).

Settings: Instituto Oftalmológico de Alicante, Vissum, Alicante, Spain.

Methods: Two hundred fifty eyes were divided into 3 groups: normal (control group), post-LASIK, and keratoconus.

The risk of retinal detachment in high myopia after small incision coaxial phacoemulsification.

Purpose: Report incidence and risk of retinal detachment (RD)after coaxial phacoemulsification in high myopic patients.

Design: Retrospective consecutive interventional study.

Setting: Vissum-Instituto Oftalmologico de Alicante, Spain.

Intrastromal corneal ring segment implantation by femtosecond laser for keratoconus correction.

Purpose: To report the outcomes after the implantation of intrastromal corneal ring segments (KERARING) aided by femtosecond laser for the correction of keratoconus.

Design: Prospective consecutive interventional study.

Participants: Twenty-one eyes of 16 consecutive keratoconic patients with mean age 32+/-10.

Intracorneal ring segments for keratoconus correction: long-term follow-up.

Purpose: To evaluate long-term results and stability of intracorneal ring segment (Intacs) implantation for keratoconus correction.

Setting: Vissum, Instituto Oftalmológico de Alicante and University of Miguel Hernandez, Alicante, Spain.

Methods: This retrospective study comprised 13 eyes operated on between April 2000 and December 2001 that had Intacs implantation for keratoconus correction.

Corneal higher order aberrations: a method to grade keratoconus.

Purpose: To use the anterior corneal surface higher order aberrations as a tool to detect and grade keratoconus using corneal map analysis videokeratoscopy.

Methods: A prospective observational comparative study of 80 eyes was performed. The eyes were divided into two groups.

Analysis of results related to good and bad outcomes of Intacs implantation for keratoconus correction.

Purpose: To evaluate factors influencing good and poor outcomes after intracorneal ring segment implantation to correct keratoconus.

Setting: Instituto Oftalmológico de Alicante (Vissum Corporation), University of Miguel Hernandez, Alicante, Spain.

Methods: A retrospective comparative study of the visual outcome, 25 eyes of 21 patients were implanted after intracorneal ring segments (Intacs, Addition Technology) as a method to correct keratoconus.

Intracorneal asymmetrical rings for keratoconus: where should the thicker segment be implanted?

Purpose: To report a 20-year-old man who presented with monocular diplopia in the right eye with uncorrected visual acuity (UCVA) of 0.3 and best spectacle-corrected visual acuity (BSCVA) of 1.0 with -0.

Hyperopic LASIK following intracorneal hydrogel lens explantation.

Purpose: To report hyperopic LASIK results after intracorneal hydrogel lens explantation in a bilateral hyperopic patient.

Methods: Slit-lamp examination showed diffuse corneal opacity around the lens edge and over the anterior lens surface affecting both eyes with uncorrected visual acuity of 0.4 in the right eye and 0.

Intracorneal hydrogel lenses and corneal aberrations.

Purpose: To investigate the optical performance of the cornea based on corneal aberrometry following intracorneal hydrogel lens implantation.

Methods: A retrospective, nonconsecutive, observational study of the anterior corneal surface aberration profile of four hyperopic eyes previously implanted with an intracorneal hydrogel lens were studied by videokeratographic elevation maps before and 6 months after surgery.

Results: Intracorneal hydrogel lenses reduced the optical performance in all four eyes by increasing the spherical aberrations by a mean factor of 1.