The influence of orthokeratology compression factor on ocular higher-order aberrations
Lau, J.K.; Vincent, S.J.; Cheung, S-Wan.; Cho, P.
Clinical & experimental optometry 103(1): 123-128
To investigate the influence of compression factor upon changes in ocular higher-order aberrations (HOAs) in young myopic children undergoing orthokeratology treatment. Subjects aged between six and Z 6 - 6 and Z 6 - 4 only (both p Z 4 0 , p = 0.04) and Rms values for spherical and total HOAs (both p Z 3 1 and Z 6 0 , both p Z 4 0 ) was positively correlated with the reduction in spherical equivalent refractive error, but only in eyes fitted with the increased compression factor (r = 0.69, p < 0.001). Increasing the orthokeratology compression factor by 1.00 D significantly altered some HOAs, particularly spherical aberration. Given the association between positive spherical aberration and eye growth in children, further research investigating the influence of orthokeratology compression factor on axial eye growth is warranted.