Visual outcomes after Epi-LASIK and PRK for low and moderate myopia.

Purpose: To evaluate visual outcomes following epi-LASIK compared to photorefractive keratectomy (PRK).

Methods: Of a total 294 patients aged ≥21 years, 145 (290 eyes) underwent epi-LASIK and 149 (298 eyes) underwent PRK for low to moderate myopia or myopic astigmatism. Epi-LASIK was performed with the Amadeus II epikeratome (Abbott Medical Optics) and PRK with the Amoils rotary epithelial brush (Innovative Excimer Solutions).

Visual and IOP outcomes after PRK in pigment dispersion syndrome.

Purpose: To report the results of photorefractive keratectomy (PRK) in patients with pigment dispersion syndrome.

Methods: The pre- and postoperative records of patients with pigment dispersion syndrome who underwent PRK between January 2002 and March 2009 were reviewed. Data for analysis included gender, age, ablation depth, surgical complications, manifest refraction spherical equivalent, uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), intraocular pressure (IOP), central corneal thickness (CCT), cup-to-disc (c/d) ratio, and postoperative complications.

Corneal biomechanics following epi-LASIK.

Purpose: To evaluate corneal biomechanical changes following epi-LASIK.

Methods: In this prospective study of 51 patients, corneal hysteresis (CH), corneal resistance factor (CRF), and intraocular pressure (IOP) were assessed using the Ocular Response Analyzer (ORA, Reichert Technologies) preoperatively and at 1, 3, 6, and 12 months after epi-LASIK. Repeated measures analysis of variance (ANOVA) was used to compare changes over time (alpha=.

Oral gabapentin for photorefractive keratectomy pain.

Purpose: To compare the efficacy of oral gabapentin versus placebo for the control of severe pain after photorefractive keratectomy (PRK).

Setting: Center for Refractive Surgery, Walter Reed Army Medical Center, Washington, DC, USA.

Design: Randomized masked clinical trial.

Scattered ultraviolet emissions during refractive surgery using a high-frequency, wavefront-optimized excimer laser platform.

Purpose: To evaluate occupational ultraviolet (UV) exposure during photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) with the Allegretto Wave Eye-Q 400 Hz excimer laser.

Setting: Walter Reed Center for Refractive Surgery, Washington, DC, USA.

Methods: Intraoperative UV measurements were performed during PRK with epithelial removal using an Amoils brush, PRK with epithelial removal using 20% ethanol, or femtosecond LASIK.

Effect of blast trauma and corneal foreign bodies on visual performance.

Purpose: To evaluate the effect of non-penetrating corneal foreign bodies secondary to explosive blasts on the visual performance of soldiers.

Methods: In a prospective, non-interventional study subjective visual performance and objective optical quality of 11 injured eyes with retained corneal foreign bodies were compared with that of 11 normal controls. Visual performance measures consisted of best spectacle-corrected high-contrast visual acuity (HCVA), low-contrast (5%) visual acuity (LCVA), and contrast sensitivity (CS).