Original articleAge-related changes in corneal and ocular higher-order wavefront aberrations☆
Section snippets
Design
Observational case series of patients without history of ocular abnormalities.
Patients and methods
Subjects were selected from the patients who visited the Miyata Eye Hospital for ocular examination. All of the subjects had no history of ocular abnormalities and had best-corrected visual acuity of 20/20 or better. All subjects gave informed consent before participation. The research protocol adhered to the tenets of the Declaration of Helsinki.
Videokeratographic and wavefront aberration data were obtained with computerized videokeratography and the Hartmann-Shack wavefront analyzer, both of
Results
From 81 patients, data for the central 6 mm were not obtained in six eyes of six patients, which were excluded from the study. In these six patients, the mean age was 58.5 years (range, 31 to 68 years) and the mean spherical equivalent (SE) of the manifest refraction was −0.86 ± 3.41 diopters (range, −7.38 to +2.75 diopters). Seventy five eyes of 75 subjects were examined (22 men, 53 women; age range, 18 to 69 years). The spherical component of their manifest refraction ranged from +3.5
Discussion
The current results showed that both corneal and ocular coma RMS showed positive correlations with age. Previous studies separately reported the increase of corneal15, 16 or ocular9, 10, 11, 12 coma with aging. We found a positive correlation between corneal and ocular coma in the same eyes. Moreover, the corneal and ocular comas were similar in the magnitude. These results strongly suggest that the increase of ocular coma with aging is mainly because of the increase of corneal coma.
Corneal
Supplementary files
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