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مقاله
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Abstract
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Title:
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Correlation of Major Components of Ocular Astigmatism in Myopic Patients
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Author(s):
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1-Mehrdad Mohammadpour, MD 2-Zahra Heidari, MSc 3-Mehdi Khabazkhoob, PhD 4-Afsaneh Amouzegar, MD 5-Hassan Hashemi, MD
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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. Faculty Member, School of Paramedical Science, Mazandaran University of Medical Sciences, Sari, Iran;
2. 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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02188610648
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Mobile:
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09125266018
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Purpose:
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To investigate the correlation of major components of ocular astigmatism in myopic
patients in an academic hospital
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Methods:
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This cross-sectional study was conducted on 376 eyes of 188 patients who were referred to
Farabi Eye Hospital for refractive surgery. Preoperative examinations including refraction and corneal
topography were performed for all candidates to measure refractive and corneal astigmatism. Ocular
residual astigmatism was calculated using vector analysis.
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Results:
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Mean age of 119 women (63.3%) and 69 men (36.7%) was 27.8±5.7 years. Mean refractive and
corneal astigmatism was 1.97±1.3 D and 1.85± 1.01D, respectively.
Mean amount of ORA was 0.65± 0.36 D.
There was a significant correlation between ORA and refractive astigmatism(r=0.23, p<0.001), corneal
and refractive astigmatism (r=0.91, p<0.001) and a weak correlation between ORA and corneal
astigmatism (r=0.13, p=0.014). There was a significant correlation between J0 and J45 values of ORA
and corneal astigmatism (P<0.001).
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Conclusion:
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There is a significant correlation between ORA and refractive astigmatism, refractive and
corneal astigmatism and a weak correlation between ORA and corneal astigmatism in refractive surgery candidates. Identifying the type of astigmatism and preoperative measurement of ocular residual
astigmatism is highly recommended prior to any refractive surgery, especially in cases with significant
astigmatism.
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Attachment:
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4139IRSO 25-Zheidari poster.ppt
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