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KMID : 1011420190240030315
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Journal of Korean Ophthalmic Optics Society
2019 Volume.24 No. 3 p.315 ~ p.321
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Wavefront Higher-order Aberrations in Young Myopic Adults
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Kim Jeong-Mee
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Abstract
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Purpose: To analyze the ocular higher-order aberrations (HOAs) in young adults with myopia compared to emmetropes.
Methods: Two hundred and fifty-eight eyes of 129 myopic individuals (23.38±2.28 years; range, 20?31 years) and 68 eyes of 34 emmetropic individuals (22.59±1.69 years; range, 20?26 years) were enrolled. The spherical equivalent (SE) refraction for myopic individuals ranged from -0.88 to ?11.75 diopters (D); 67 eyes had low myopia (?0.88≤SE-1.00 D). Ocular higher-order aberrations for 4 mm and 6 mm pupils were measured using a wavefront analyzer with the Hartmann-Shack technique.
Results: No statistically significant differences were found at all levels of HOAs for the 4 mm and 6 mm pupil sizes among the refractive error groups (5 groups). There were significant correlations between the total HOAs and SE of refractive errors for a 6 mm pupil (r= ?0.128; p=0.020) but none for spherical aberration (SA) (r= ?0.059, p=0.284).
Conclusions: Myopic individuals had slight increases in HOAs with increase in the level of myopia; however, there were no statistically differences in total HOAs, third- and fourth-order aberrations, coma, and spherical aberration between myopic and emmetropic individuals. Thus, there were no significant differences between the HOAs of young myopic and emmetropic adults.
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KEYWORD
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Higher-order aberrations, Myopia, Spherical aberration
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