Literature DB >> 12160151

Laser in situ keratomileusis for hyperopia and hyperopic astigmatism using the Meditec MEL 70 spot scanner.

Klaus Ditzen1, Joachim Fiedler, Stefan Pieger.   

Abstract

PURPOSE: To evaluate safety, predictability, efficacy, and stability of laser in situ keratomileusis (LASIK) for spherical hyperopia and hyperopia with astigmatism.
METHODS: In this retrospective study we analyzed the results of 23 eyes of 23 patients who had LASIK for spherical hyperopia (preoperative cylinder < or = 0.75 D) and 44 eyes of 44 patients who had LASIK for hyperopia with astigmatism; (Bausch & Lomb Hansatome microkeratome with a 180-microm plate and a suction ring for a 9.5-mm flap diameter; Asclepion-Meditec MEL 70 G-scan flying spot laser with a 1.8-mm Gaussian beam).
RESULTS: In Group 1 (spherical hyperopia), mean preoperative spherical equivalent refraction was +4.88 +/- 2.13 D (range +2.13 to +9.63 D); in Group 2 (hyperopic astigmatism), +4.33 +/- 2.15 D (range +0.50 to +9.50 D). One year after LASIK, mean spherical equivalent refraction was +0.30 +/- 0.90 D (range -0.75 to +2.50 D) in Group 1 and +0.29 +/- 1.27 D (range -3.25 to +3.25 D) in Group 2. In Group 1, 78%, and in Group 2, 42% were within +/- 0.50 D. In Group 1, no eyes lost two or more lines, and one eye (6%) lost one line of best spectacle-corrected visual acuity at 1 year. In Group 2, one eye (4%) lost one line and one eye (4%) lost more than two lines at 1 year. Uncorrected visual acuity of 20/40 or better was achieved in 83% (Group 1) vs. 62% (Group 2) at 1 year; these values improved to 100% vs. 71% for corrections up to +6.00 D.
CONCLUSIONS: LASIK with the Meditec MEL 70 G-Scan flying spot laser seemed to be safe and effective for hyperopia and hyperopia with astigmatism for corrections up to +6.00 D. Large flap diameters are necessary to avoid epithelial ingrowth.

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Year:  2002        PMID: 12160151     DOI: 10.3928/1081-597X-20020701-02

Source DB:  PubMed          Journal:  J Refract Surg        ISSN: 1081-597X            Impact factor:   3.573


  3 in total

1.  Conductive keratoplasty: a radiofrequency-based technique for the correction of hyperopia.

Authors:  Marguerite B McDonald
Journal:  Trans Am Ophthalmol Soc       Date:  2005

2.  Femtosecond-LASIK outcomes using the VisuMax®-MEL® 80 platform for hyperopia and hyperopic astigmatism refractive surgery.

Authors:  Bogdana Tăbăcaru; Horia Tudor Stanca; Ruxandra Angela Pîrvulescu; Simona Stanca; Ciprian Danielescu; Mihnea Munteanu; Cosmin Roșca; Adrian Cosmin Teodoru
Journal:  Exp Ther Med       Date:  2021-01-26       Impact factor: 2.447

3.  Topography-guided hyperopic and hyperopic astigmatism femtosecond laser-assisted LASIK: long-term experience with the 400 Hz eye-Q excimer platform.

Authors:  Anastasios John Kanellopoulos
Journal:  Clin Ophthalmol       Date:  2012-06-12
  3 in total

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