Assessment of Levels of Ultraviolet A Light Protection in Automobile Windshields and Side Windows.

Importance: Ultraviolet A (UV-A) light is associated with the risks of cataract and skin cancer.

Objective: To assess the level of UV-A light protection in the front windshields and side windows of automobiles.

Design: In this cross-sectional study, 29 automobiles from 15 automobile manufacturers were analyzed.

Factors that correlate with improvement in vision after combined Intacs and trans-epithelial corneal crosslinking.

Aim: To analyse factors that correlate with best corrected visual acuity (BCVA) improvement after Intacs and trans-epithelial corneal collagen crosslinking with riboflavin-carboxymethylcellulose.

Methods: A 3-year retrospective study of 14 eyes that underwent trans-epithelial crosslinking and same day Intacs.

Results: The mean preoperative BCVA and spherical equivalent were significantly related to BCVA postoperatively.

Optimizing the vault of collagen copolymer phakic intraocular lenses in eyes with keratoconus and myopia: comparison of 2 methods.

Purpose: To compare 2 methods for optimizing the final central vault of a collagen copolymer posterior chamber phakic intraocular lens (pIOL) (Visian Implantable Collamer Lens) in eyes with keratoconus and myopia.

Setting: Private practice, Beverly Hills, California, USA.

Design: Comparative interventional study.

Comparison of the Visian ICL and Verisyse phakic intraocular lenses for myopia from 6.00 to 20.00 diopters.

Purpose: To compare visual and refractive outcomes between the Visian Implantable Collamer Lens (ICL) and Verisyse phakic intraocular lens.

Methods: Comparative interventional case series for myopia between 6.00 and 20.

Two cases of Z syndrome with the Crystalens after uneventful cataract surgery.

We report 2 cases of Z syndrome with the Crystalens AT50SE and AT52SE intraocular lenses (Eyeonics, Inc.) after uneventful cataract surgery. Both patients had subsequent neodymium:YAG laser capsulotomy treatment that remedied the complication.

Effect of nepafenac sodium 0.1% on delayed corneal epithelial healing and haze after photorefractive keratectomy: retrospective comparative study.

Purpose: To assess delayed epithelialization and corneal haze related to nepafenac ophthalmic suspension 0.1% (Nevanac) use after photorefractive keratectomy (PRK).

Setting: Private practice, Beverly Hills, California, USA.

A comparison of CustomCornea myopia algorithms for wavefront-guided laser in situ keratomileusis.

Objective: To determine whether the new CustomCornea M3 (myopic astigmatism) algorithm places additional pulses in the periphery to counter excimer laser peripheral ablation inefficiency.

Methods: Analysis of 25 myopic eyes of 18 patients that were within the approved indications for both the myopic astigmatism (M3) and myopic sphere (A7) algorithms. We analyzed ablation depth at peak and 4-mm, 6-mm, and 7-mm zone diameters for both the A7 and M3 algorithms.

Higher order aberrations and relative risk of symptoms after LASIK.

Purpose: To understand what level of higher order aberrations increases the relative risk of visual symptoms in patients after myopic LASIK.

Methods: This study was a retrospective comparative analysis of 103 eyes of 62 patients divided in two groups, matched for age, gender, pupil size, and spherical equivalent refraction. The symptomatic group comprised 36 eyes of 24 patients after conventional LASIK with different laser systems evaluated in our referral clinic and the asymptomatic control group consisted of 67 eyes of 38 patients following LADARVision CustomCornea wavefront LASIK.

Reduced best spectacle-corrected visual acuity from inserting a thicker Intacs above and thinner Intacs below in keratoconus.

Purpose: To report a case of decreased best spectacle-corrected visual acuity (BSCVA) 2 months after Intacs implantation.

Methods: A 33-year-old woman with keratoconus and contact lens intolerance underwent Intacs surgery in the left eye at another institution. Two segments were used--a thinner one (0.

Comparison of the effects of LASIK retreatment techniques on epithelial ingrowth rates.

Purpose: To compare the incidence of postoperative epithelial ingrowth using 3 different surgical LASIK retreatment techniques.

Design: Retrospective consecutive case series.

Participants And Controls: Thirty consecutive eyes that underwent LASIK retreatments by a single surgeon.

Centration analysis of ablation over the coaxial corneal light reflex for hyperopic LASIK.

Purpose: To analyze postoperative topographic centration when the coaxially sighted corneal light reflex was used for laser centration in hyperopic LASIK.

Methods: Centration photographs of 21 eyes (12 patients) that underwent hyperopic LASIK with centration over the coaxially sighted corneal light reflex were reviewed to determine the distance from the entrance pupil center to the coaxially sighted corneal light reflex. Postoperative ablation centration was determined topographically at day 1 and 3 months by four different methods.

Comparison of single-segment and double-segment Intacs for keratoconus and post-LASIK ectasia.

Purpose: To evaluate the efficacy of single-segment Intacs and compare with double-segment Intacs in subjects with post-LASIK ectasia and keratoconus.

Design: Retrospective comparative analysis.

Methods: setting: Boxer Wachler Vision Institute, Beverly Hills, California, USA.

Complex wavefront-guided retreatments with the Alcon CustomCornea platform after prior LASIK.

Purpose: To report the results of complex wavefront-guided LASIK retreatments.

Methods: Twenty eyes (15 patients) with histories of conventional LASIK surgery and significant visual complaints of glare and halos due to higher order aberrations were treated. Wavefront-guided retreatments were performed with the LADARVision CustomCornea system (Alcon, Ft Worth, Tex).

Reversal of laser in situ keratomileusis-induced ectasia with intraocular pressure reduction.

A 40 year-old woman had laser in situ keratomileusis for --7.75 --0.75 x 20 in the right eye.

Establishing analysis parameters for spherical aberration after wavefront LASIK.

Purpose: To compare preoperative and postoperative spherical aberration, coma, and other higher order aberrations from wavefront LASIK at varying pupil analysis diameters and different myopic corrections, and to determine acceptable parameters for wavefront measurements.

Design: Nonrandomized retrospective chart review.

Participants: Twenty-one eyes of 12 patients who had CustomCornea LASIK with the LADARVision 4000 (Alcon, Fort Worth, TX).

Functional optical zone after myopic LASIK as a function of ablation diameter.

Purpose: To analyze spherical aberrations in patients who had myopic laser in situ keratomileusis (LASIK) with different optical zones and varying degrees of attempted corrections.

Setting: Laser Refractive Center, University of California, Los Angeles, USA.

Methods: This retrospective analysis comprised 78 eyes of 56 consecutive patients who had LASIK for myopia with the Alcon LADARVision excimer laser.

Understanding pre-market approval and labeling differences of two leading customized ablation platforms: a call for reform at the FDA.

Purpose: To analyze the Food and Drug Administration (FDA) pre-market approval reported data for two currently available wavefront-guided excimer laser systems.

Methods: VISX and Alcon myopic wavefront laser in situ keratomileusis (LASIK) trials were analyzed based on public information available in the pre-market approval documents.

Results: Clinical tests and outcomes reporting varied between pre-market approvals.

Reduction of pupil size and halos with minus lenses after laser in situ keratomileusis.

Purpose: To evaluate the amount of miosis induced by over-minused lenses and to assess subjective reduction of halos following laser in situ keratomileusis (LASIK) with such lenses.

Methods: Part I: Infrared pupil diameter was assessed in 14 patients who had not had ocular surgery. The accommodative/miotic reflex was stimulated with concave trial lenses in -1.

Use of large optical zones with the LADARVision laser for myopia and myopic astigmatism.

Purpose: To analyze the visual acuity, contrast sensitivity, and target deviations of patients who underwent laser in situ keratomileusis (LASIK) for spherical and astigmatic myopia with up to 8.0-mm laser optical zones.

Design: A retrospective noncomparative interventional case series.

Intacs for keratoconus.

Purpose: To evaluate the efficacy and safety of placement of Intacs in subjects with keratoconus.

Design: Retrospective, nonrandomized comparative trial.

Intervention: Intrastromal corneal ring segment implantation.