Vergence Formula for Estimating the Refractive Status of Aphakic Eyes in Pediatric Patients

Frontiers in Medicine

Luya Chen¹  Jing Li²  Xiaoli Kang³  Linlu Tian³  Huang Zhu³  Peiquan Zhao³  Yan Wei⁴ 

[1] ENT Hospital Affiliated to Fudan University, Shanghai, China;Department of Ophthalmology, Children Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China;Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China;;Eye Institute and Department of Ophthalmology, Eye &

关键词: aphakia;    refraction;    vergence formula;    pediatric;    biometry;   

DOI  :  10.3389/fmed.2022.861745

来源: DOAJ

【 摘 要 】

Clinical RelevanceA vergence formula may provide a simple and reliable calculation of the refractive status of aphakic eyes.BackgroundMeasuring the refractive error of pediatric eyes with aphakia is difficult. This study investigated the accuracy and applicability of a vergence formula for estimating the refractive status of such eyes.MethodsA retrospective review of the medical records, created between January 2016 and December 2018, of pediatric patients with aphakia was conducted. A vergence formula, based on axial length, was used to calculate the refractive status of the aphakic eyes. The refractive values determined using retinoscopy, an automatic refractometer, and the vergence formula were compared.ResultsA total of 72 eyes (47 patients) were analyzed. The spherical equivalents of the refractive errors (mean ± standard deviation) of the eyes were determined using retinoscopy (13.01 ± 3.27 D), automatic refractometry (12.90 ± 3.23 D), and the vergence formula (12.70 ± 3.4 D). The correlation coefficient between retinoscopy values determined using retinoscopy and the vergence formula, automatic refractometry and the vergence formula, and retinoscopy and automatic refractometry were 0.968, 0.987, and 0.979, respectively. The Bland-Altman consistency analysis revealed that the mean differences in the spherical equivalent values between retinoscopy and automatic refractometry, retinoscopy and the vergence formula, and automatic refractometry and the vergence formula were 0.11 D, 0.31 D, and 0.21 D, respectively, with 95% limits of agreement of−1.20 to 1.41 D,−1.37 to 2.00 D, and−0.90 to 1.31 D, respectively.ConclusionThe vergence formula was effective for evaluating the refractive status of aphakic eyes in pediatric patients.

【 授权许可】

Unknown