The Change in Ocular Refractive Components After Cycloplegia in Children

Gao, Lei; Zhuo, Xuying; Kwok, Alex Pak Ki; Yu, Ning; Ma, Lihua; Wang, Jinghua

doi:10.1016/s0021-5155(02)00479-3

Cited by 50 publications

(59 citation statements)

References 11 publications

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“…The accumulative effects of accommodation eventually cause the structural elongation of the eyeball in the myopic eye. [22][23][24] Our study showed a decrease in AA postoperatively, and CT increased as AA reducing after surgery. We proposed that after correcting the refractive error, retinal images become clearer.…”

Section: Discussionsupporting

confidence: 48%

“…21 Accommodation occurs as the ciliary muscle and ciliary body move forward and inward. As reported previously, the force involved in the contraction of the ciliary muscle may be transmitted to the choroid, and this mechanical force can affect the CT. 22 Previous studies confirmed that in the absence of a clear retinal image, ocular accommodation can be stimulated, 22,23 and that the force of ciliary muscle contraction applied an inward and forward pulling force, which resulted in thinning of the choroid.…”

Section: Discussionmentioning

confidence: 88%

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Change in choroidal thickness and the relationship with accommodation following myopic excimer laser surgery

Cheng

Yuan

et al. 2016

Eye

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Purpose To investigate early changes in choroidal thickness (CT) and the relationship with accommodation after myopic excimer laser surgery. Methods We enrolled the right eye of 70 patients with myopia and without other ophthalmic or systemic diseases who were suitable for myopic excimer laser surgery. The CT was measured at the fovea and at distances of 0.5 and 2.5 mm for the following: nasal; temporal; superior; and inferior to the fovea preoperatively and at 1 month postoperatively. Other data collected included demographic information (age, sex, and refractive error), the amplitude of accommodation (AA), intraocular pressure, axial length, corneal thickness, and surgical parameters. The data were analyzed with a paired Student's t-test, stepwise linear regression, and correlation analysis. Results The CT was significantly thicker postoperatively compared with the preoperative CT. The AA significantly decreased postoperatively. The change in the AA was the most significant factor associated with the change in the CT at the fovea. Except for 2.5 mm inferior to the fovea, the increase in the CT at other locations was positively correlated with the decrease in the AA. Conclusions The CT increased following myopic excimer laser surgery and the change was most obvious when accompanied by a decrease in the AA early after the surgery.

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Section: Discussionsupporting

confidence: 48%

Section: Discussionmentioning

confidence: 88%

Change in choroidal thickness and the relationship with accommodation following myopic excimer laser surgery

Cheng

Yuan

et al. 2016

Eye

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“…Cycloplegic retinoscopy was not undertaken for several reasons: children had to return to normal classes with near-work demands after the examination; children had to return to their houses walking or on a bicycle (an average of 10 km); and finally, it is arguable that cycloplegia can induce unpredictable errors. 5 Table 1 shows the total prevalence of refractive error and the distribution of the prevalence by sex. Table 2 presents the prevalence of refractive errors for the different age groups of children.…”

Section: Study Reportmentioning

confidence: 99%

Prevalence of Refractive Errors in School-Age Children in Burkina Faso

et al. 2006

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“…Cycloplegia is reported to induce significant decreases in the lens thickness and backward movement of the lens. 24 Dubblman et al 25,26 used Scheimpflug images to show that accommodation induces hypertrophy of the central portion of the lens. The authors reported that the radii of curvature of the anterior and posterior surfaces of the crystalline lens affected the change in spherical aberration, resulting in a late central wavefront.…”

mentioning

confidence: 99%

Influence of cycloplegia with topical cyclopentolate on higher-order aberrations in myopic children

Hiraoka

Nakamura

Ogata

et al. 2014

Eye

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Purpose To investigate the influence of cycloplegia with topical cyclopentolate on wavefront aberrations in myopic children. Design This is a prospective, comparative study. Methods Twenty-eight myopic children with a mean age of 7.25±2.55 were enrolled in this study. We evaluated refraction and wavefront aberrations before and after cycloplegia with 1% cyclopentolate hydrochloride. Ocular and corneal aberrations were simultaneously measured and compared with each other. Individual Zernike components were also analyzed up to the sixth order. All these parameters were compared before and after cycloplegia. Results Ocular higher-order aberrations (HOAs) significantly increased after cycloplegia (P ¼ 0.012 for spherical-like and P ¼ 0.015 for total HOAs). Corneal HOAs did not change after cycloplegia. When corneal and ocular HOAs were compared, the ocular HOAs were significantly smaller than the corneal HOAs in spherical-like aberrations (Po0.001) and total HOAs (P ¼ 0.006). As for individual Zernike components, ocular aberration generally showed smaller or equivalent values in comparison with corneal aberration. In addition, each Zernike component showed a large standard deviation. Conclusions Internal optics compensates for corneal HOAs in myopic children, and paralysis of tonic accommodation with cyclopentolate considerably affects ocular HOAs. However, inter-individual variation in each Zernike component is quite large in myopic children.

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The Change in Ocular Refractive Components After Cycloplegia in Children

Cited by 50 publications

References 11 publications

Change in choroidal thickness and the relationship with accommodation following myopic excimer laser surgery

Change in choroidal thickness and the relationship with accommodation following myopic excimer laser surgery

Prevalence of Refractive Errors in School-Age Children in Burkina Faso

Influence of cycloplegia with topical cyclopentolate on higher-order aberrations in myopic children

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