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مقاله
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Abstract
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Title:
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Correlation of higher order aberrations and components of astigmatism in myopic refractive surgery candidates
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Author(s):
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Mohammadpour M, Heidari Z, Mohammad-Rabei H, Jafarzadehpur E, Jabbarvand M, Hashemi H, Khabazkhoob M
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Presentation Type:
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Poster
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Subject:
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Cornea and Anterior Segment
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Others:
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Presenting Author:
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Name:
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Zahra Heidari
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Affiliation :(optional)
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1-Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran; 2-Ophthalmology Department, Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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E mail:
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zahra.heidari77@yahoo.com
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Phone:
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02182401616
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Mobile:
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09125266018
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Purpose:
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To evaluate the correlation between refractive, corneal, and residual astigmatism and higher order aberrations (HOA) in refractive surgery candidates.
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Methods:
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Three hundred and seventy-five eyes of 188 patients aged 28.2 ± 6.24 years with a predominance of females (62.7%) were enrolled in this study. Refraction, topography (Orbscan IIz, Bausch & Lomb, Rochester, NY, USA), and aberrometry (Zywave, Bausch & Lomb, Rochester, NY, USA) were performed to determine refractive and corneal astigmatism and HOA for all participants. Ocular residual astigmatism was calculated using vector analysis.
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Results:
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The mean spherical equivalent was -3.59 ± 1.95 D and the mean refractive astigmatism was -1.97 ± 1.3 D. The mean HOA was 0.38 ± 0.15 ?m in all cases, which increased with spherical equivalent (p < 0.05). There was a positive significant correlation between both corneal and refractive astigmatism and HOA (p < 0.05), but there was no significant correlation between residual astigmatism and HOA (p = 0.122).
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Conclusion:
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The results of the study showed significant correlations between corneal and refractive astigmatisms and HOA.
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Attachment:
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6Z.poster.ppt
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