HIGHER-ORDER ABERRATIONS IN MYOPIC EYES

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KARIMIAN FARID; FEYZI SEPEHR

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Journal Paper

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Journal: Journal of Ophthalmic and Vision Research Year:2010 | Volume:5 | Issue:1 Page(s): 3-9

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Information Journal Paper

Title

HIGHER-ORDER ABERRATIONS IN MYOPIC EYES

Author(s)

KARIMIAN FARID | FEYZI SEPEHR | Issue Writer Certificate

Keywords

HIGHER-ORDER ABERRATIONS

MYOPIA

ZYWAVE ABERROMETER

HARTMANN-SHACK ABERROMETER

Abstract

Purpose: To evaluate the correlation between refractive error and HIGHER-ORDER ABERRATIONS (HOAs) in patients with myopic astigmatism.Methods: HOAs were measured using the Zywave II aberrometer over a 6 mm pupil. Correlations between HOAs and MYOPIA, astigmatism, and age were analyzed.Results: One hundred and twenty-six eyes of 63 subjects with mean age of 26.4±5.9 years were studied. Mean spherical equivalent refractive error and refractive astigmatism were -4.94±1.63 D and 0.96±1.06 D, respectively. The most common higher-order aberration was primary horizontal trefoil with mean value of 0.069±0.152 mm followed by spherical aberration (-0.064±0.130 mm) and primary vertical coma (-0.038±0.148 mm). As the order of aberration increased from third to fifth, its contribution to total HOA decreased: 53.9% for third order, 31.9% for fourth order, and 14.2% for fifth order aberrations. Significant correlations were observed between spherical equivalent refractive error and primary horizontal coma (R=0.231, P=0.022), and root mean square (RMS) of spherical aberration (R=0.213, P=0.031); between astigmatism and RMS of total HOA (R=0.251, P=0.032), RMS of fourth order aberration (R=0.35, P<0.001), and primary horizontal coma (R=0.314, P=0.004). Spherical aberration (R=0.214, P=0.034) and secondary vertical coma (R=0.203, P=0.031) significantly increased with age. Conclusion: Primary horizontal trefoil, spherical aberration and primary vertical coma are the predominant HIGHER-ORDER ABERRATIONS in eyes with myopic astigmatism.

Cites

CORRELATION BETWEEN REFRACTIVE, CORNEAL AND LENTICULAR ASTIGMATISMS AND HIGHER ORDER ABERRATIONS IN REFRACTIVE SURGERY CANDIDATES

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APA: Copy

KARIMIAN, FARID, & FEYZI, SEPEHR. (2010). HIGHER-ORDER ABERRATIONS IN MYOPIC EYES. JOURNAL OF OPHTHALMIC AND VISION RESEARCH, 5(1), 3-9. SID. https://sid.ir/paper/311398/en

Vancouver: Copy

KARIMIAN FARID, FEYZI SEPEHR. HIGHER-ORDER ABERRATIONS IN MYOPIC EYES. JOURNAL OF OPHTHALMIC AND VISION RESEARCH[Internet]. 2010;5(1):3-9. Available from: https://sid.ir/paper/311398/en

IEEE: Copy

FARID KARIMIAN, and SEPEHR FEYZI, “HIGHER-ORDER ABERRATIONS IN MYOPIC EYES,” JOURNAL OF OPHTHALMIC AND VISION RESEARCH, vol. 5, no. 1, pp. 3–9, 2010, [Online]. Available: https://sid.ir/paper/311398/en

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