PURPOSE: To evaluate the safety and effi cacy of the ALLEGRETTO WAVE excimer laser system (WaveLight Laser Technologie AG, Erlangen, Germany) in LASIK for hyperopia and hyperopic astigmatism. METHODS:One hundred twenty consecutive LASIK cases for hyperopia with or without astigmatism treated with the ALLEGRETTO WAVE excimer laser were prospectively evaluated up to 12 months postoperatively. Patients were allocated into three groups according to their refractive sphere and cylinder: a low hyperopia group, with up to ϩ3.00 diopters (D) sphere and astigmatism рϩ1.00 D (n=52); a moderate hyperopia group with ϩ3.25 to ϩ5.00 D sphere and astigmatism of рϩ1.00 D (n=45); and a high hyperopia/toric group sphere уϩ5.25 D or cylinder у1.25.D (n=23). Flaps were created with the Moria M2 microkeratome (Moria, Antony, France). Parameters evaluated were pre-and postoperative refractive error, uncorrected visual acuity, best spectacle-corrected visual acuity (BSCVA), higher order aberration change, and contrast sensitivity.

PURPOSE:To describe our clinical experience in wavefront-guided LASIK enhancements using the WaveLight ALLEGRETTO system (WaveLight Technologie AG, Erlangen, Germany) for symptomatic eyes previously treated with standard LASIK.

PURPOSE: To evaluate the safety and efficacy of the Moria M2 single use 130 microkeratome head in consecutive LASIK procedures for correction of myopia and myopic astigmatism. METHODS: One hundred eyes of 55 patients underwent LASIK in which the flaps were created with the Moria M 2 microkeratome using the single use 130 head and excimer laser ablation was done with the Allegretto Wavelight laser. Flap parameters measured were: thickness, diameter, hinge length, and overall quality. Preoperative uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), refraction, wavefront aberrations, and low contrast sensitivity were compared to postoperative values at 6-month follow-up. RESULTS: Mean flap thickness was 145 ?17. 5 ?im, mean flap diameter was 8.5?0.40 mm, and mean hinge cord length was 4. 05 ?0.35 mm. At 6-month follow-up, UCVA improved from 20/200 (?0.24) to 20/18.5 (?0.12) and BSCVA improved from 20/20.5 (?0.18) to 20/17.5 (?0.11). CONCLUSIONS: The Moria M2 single use 130 microkeratome head appears to be safe and effective in performing LASIK procedures. [J Refract Surg. 2005;21:476-479.]

Four patients with monoocular erythropsia (seeing red) caused by excessive exposure to bright light are presented. Each patient had a nonultraviolet (UV)-filtering intraocular lens (IOL) in the involved eye; the fellow eye was either phakic or had a UV-filtering IOL. Each patient had seen a definite red hue to lights (moon, automobile headlights, etc.) only at night after prior prolonged exposure to high-intensity sunlight and only in the eye with a non-UV-filtering IOL.

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