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LASIK versus photorefractive keratectomy for high myopic (> 3 diopter) astigmatism

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LASIK versus photorefractive keratectomy for high myopic (> 3 diopter) astigmatism. / Katz, Toam; Wagenfeld, Lars; Galambos, Peter; Darrelmann, Benedikt Große; Richard, Gisbert; Linke, Stephan Johannes.

In: J REFRACT SURG, Vol. 29, No. 12, 01.12.2013, p. 824-31.

Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review

Harvard

Katz, T, Wagenfeld, L, Galambos, P, Darrelmann, BG, Richard, G & Linke, SJ 2013, 'LASIK versus photorefractive keratectomy for high myopic (> 3 diopter) astigmatism', J REFRACT SURG, vol. 29, no. 12, pp. 824-31. https://doi.org/10.3928/1081597X-20131029-03

APA

Katz, T., Wagenfeld, L., Galambos, P., Darrelmann, B. G., Richard, G., & Linke, S. J. (2013). LASIK versus photorefractive keratectomy for high myopic (> 3 diopter) astigmatism. J REFRACT SURG, 29(12), 824-31. https://doi.org/10.3928/1081597X-20131029-03

Vancouver

Katz T, Wagenfeld L, Galambos P, Darrelmann BG, Richard G, Linke SJ. LASIK versus photorefractive keratectomy for high myopic (> 3 diopter) astigmatism. J REFRACT SURG. 2013 Dec 1;29(12):824-31. https://doi.org/10.3928/1081597X-20131029-03

Bibtex

@article{6da5f081109b4b9baa38972180a4eb21,
title = "LASIK versus photorefractive keratectomy for high myopic (> 3 diopter) astigmatism",
abstract = "PURPOSE: To compare the efficacy, safety, predictability, and vector analysis indices of LASIK and photorefractive keratectomy (PRK) for correction of high cylinder of greater than 3 diopters (D) in myopic eyes.METHODS: The efficacy, safety, and predictability of LASIK or PRK performed in 114 consecutive randomly selected myopic eyes with an astigmatism of greater than 3 D were retrospectively analyzed at the 2- to 6-month follow-up visits. Vector analysis of the cylindrical correction was compared between the treatment groups.RESULTS: A total of 57 eyes receiving PRK and 57 eyes receiving LASIK of 114 refractive surgery candidates were enrolled in the study. No statistically significant difference in efficacy [efficacy index = 0.76 (±0.32) for PRK vs 0.74 (±0.19) for LASIK (P = .82)], safety [safety index = 1.10 (±0.26) for PRK vs 1.01 (±0.17) for LASIK (P = .121)], or predictability [achieved astigmatism < 1 D in 39% of PRK- and 54% of LASIK-treated eyes, and < 2 D in 88% of PRK- and 89% of LASIK-treated eyes (P = .218)] was demonstrated. Using Alpins vector analysis, the surgically induced astigmatism and difference vector were not significantly different between the surgery methods, whereas the correction index showed a slight and significant advantage of LASIK over PRK (1.25 for PRK and 1.06 for LASIK, P < .001).CONCLUSIONS: LASIK and PRK are comparably safe, effective, and predictable procedures for excimer laser correction of high astigmatism of greater than 3 D in myopic eyes. Predictability of the correction of the cylindrical component is lower than that of the spherical equivalent.",
keywords = "Adult, Astigmatism, Case-Control Studies, Corneal Stroma, Female, Follow-Up Studies, Humans, Keratomileusis, Laser In Situ, Lasers, Excimer, Male, Middle Aged, Myopia, Degenerative, Photorefractive Keratectomy, Retrospective Studies, Surgical Flaps, Treatment Outcome, Visual Acuity, Young Adult",
author = "Toam Katz and Lars Wagenfeld and Peter Galambos and Darrelmann, {Benedikt Gro{\ss}e} and Gisbert Richard and Linke, {Stephan Johannes}",
note = "Copyright 2013, SLACK Incorporated.",
year = "2013",
month = dec,
day = "1",
doi = "10.3928/1081597X-20131029-03",
language = "English",
volume = "29",
pages = "824--31",
journal = "J REFRACT SURG",
issn = "1081-597X",
publisher = "Slack Incorporated",
number = "12",

}

RIS

TY - JOUR

T1 - LASIK versus photorefractive keratectomy for high myopic (> 3 diopter) astigmatism

AU - Katz, Toam

AU - Wagenfeld, Lars

AU - Galambos, Peter

AU - Darrelmann, Benedikt Große

AU - Richard, Gisbert

AU - Linke, Stephan Johannes

N1 - Copyright 2013, SLACK Incorporated.

PY - 2013/12/1

Y1 - 2013/12/1

N2 - PURPOSE: To compare the efficacy, safety, predictability, and vector analysis indices of LASIK and photorefractive keratectomy (PRK) for correction of high cylinder of greater than 3 diopters (D) in myopic eyes.METHODS: The efficacy, safety, and predictability of LASIK or PRK performed in 114 consecutive randomly selected myopic eyes with an astigmatism of greater than 3 D were retrospectively analyzed at the 2- to 6-month follow-up visits. Vector analysis of the cylindrical correction was compared between the treatment groups.RESULTS: A total of 57 eyes receiving PRK and 57 eyes receiving LASIK of 114 refractive surgery candidates were enrolled in the study. No statistically significant difference in efficacy [efficacy index = 0.76 (±0.32) for PRK vs 0.74 (±0.19) for LASIK (P = .82)], safety [safety index = 1.10 (±0.26) for PRK vs 1.01 (±0.17) for LASIK (P = .121)], or predictability [achieved astigmatism < 1 D in 39% of PRK- and 54% of LASIK-treated eyes, and < 2 D in 88% of PRK- and 89% of LASIK-treated eyes (P = .218)] was demonstrated. Using Alpins vector analysis, the surgically induced astigmatism and difference vector were not significantly different between the surgery methods, whereas the correction index showed a slight and significant advantage of LASIK over PRK (1.25 for PRK and 1.06 for LASIK, P < .001).CONCLUSIONS: LASIK and PRK are comparably safe, effective, and predictable procedures for excimer laser correction of high astigmatism of greater than 3 D in myopic eyes. Predictability of the correction of the cylindrical component is lower than that of the spherical equivalent.

AB - PURPOSE: To compare the efficacy, safety, predictability, and vector analysis indices of LASIK and photorefractive keratectomy (PRK) for correction of high cylinder of greater than 3 diopters (D) in myopic eyes.METHODS: The efficacy, safety, and predictability of LASIK or PRK performed in 114 consecutive randomly selected myopic eyes with an astigmatism of greater than 3 D were retrospectively analyzed at the 2- to 6-month follow-up visits. Vector analysis of the cylindrical correction was compared between the treatment groups.RESULTS: A total of 57 eyes receiving PRK and 57 eyes receiving LASIK of 114 refractive surgery candidates were enrolled in the study. No statistically significant difference in efficacy [efficacy index = 0.76 (±0.32) for PRK vs 0.74 (±0.19) for LASIK (P = .82)], safety [safety index = 1.10 (±0.26) for PRK vs 1.01 (±0.17) for LASIK (P = .121)], or predictability [achieved astigmatism < 1 D in 39% of PRK- and 54% of LASIK-treated eyes, and < 2 D in 88% of PRK- and 89% of LASIK-treated eyes (P = .218)] was demonstrated. Using Alpins vector analysis, the surgically induced astigmatism and difference vector were not significantly different between the surgery methods, whereas the correction index showed a slight and significant advantage of LASIK over PRK (1.25 for PRK and 1.06 for LASIK, P < .001).CONCLUSIONS: LASIK and PRK are comparably safe, effective, and predictable procedures for excimer laser correction of high astigmatism of greater than 3 D in myopic eyes. Predictability of the correction of the cylindrical component is lower than that of the spherical equivalent.

KW - Adult

KW - Astigmatism

KW - Case-Control Studies

KW - Corneal Stroma

KW - Female

KW - Follow-Up Studies

KW - Humans

KW - Keratomileusis, Laser In Situ

KW - Lasers, Excimer

KW - Male

KW - Middle Aged

KW - Myopia, Degenerative

KW - Photorefractive Keratectomy

KW - Retrospective Studies

KW - Surgical Flaps

KW - Treatment Outcome

KW - Visual Acuity

KW - Young Adult

U2 - 10.3928/1081597X-20131029-03

DO - 10.3928/1081597X-20131029-03

M3 - SCORING: Journal article

C2 - 24202704

VL - 29

SP - 824

EP - 831

JO - J REFRACT SURG

JF - J REFRACT SURG

SN - 1081-597X

IS - 12

ER -