PURPOSE To profile accommodative biometric changes longitudinally and to determine the influence of age-related ocular structural changes on the accommodative response prior to the onset of presbyopia. METHODS Twenty participants (aged 34-41 years) were reviewed at six-monthly intervals over two and a half years. At each visit, ocular biometry was measured with the LenStar biometer (www.Haag-...

Purpose. To assess the repeatability and reproducibility of ocular biometry and intraocular lens (IOL) power measurements obtained by ophthalmology residents using an AL-Scan device, a novel optical biometer. Methods. Two ophthalmology residents were instructed regarding the AL-Scan device. Both performed ocular biometry and IOL power measurements using AL-Scan, three times on each of 128 eyes,...

Purpose To describe the distribution of ocular biometry and refraction in Japanese adults. Design Cross-sectional analysis a prospective cohort study. Participants A total 9850 individuals participated first follow-up Nagahama Prospective Cohort for Comprehensive Human Bioscience (the Study) conducted between 2013 2016. were 34 80 years age. Methods All participants underwent axial length (AL; ...

Purpose To evaluate the impact of image magnification correction on superficial retinal vessel density (SRVD) and foveal avascular zone area (FAZA) measurements using optical coherence tomography angiography (OCTA). Methods Participants with healthy retinas were recruited for ocular biometry, refraction, and RTVue XR Avanti OCTA imaging with the 3 × 3-mm protocol. The foveal and parafoveal SR...

© 2016 Journal of ophthalmic and Vision research | published by Wolters KluWer medKnoW Sir, We read with great interest the article titled “Association between refractive errors and ocular biometry in Iranian adults” by Hashemi et al[1] The authors aimed to evaluate the association between refractive errors and ocular biometry. We appreciate their valuable study and would like to make a comment...

PURPOSE To report calculated crystalline lens power and describe the distribution of ocular biometry and its association with refractive error in older Chinese adults. METHODS Random clustering sampling was used to identify adults aged 50 years and above in Xuhui and Baoshan districts of Shanghai. Refraction was determined by subjective refraction that achieved the best corrected vision based...

PURPOSE The purpose of this study was to evaluate the effect of pupillary dilation on the Haigis formula-calculated intraocular lens (IOL) power and ocular biometry measurements by using IOLMaster(®). METHODS A prospective study was performed for biometry measurements of 373 eyes of 192 healthy subjects using the IOLMaster at the outpatient department of King Chulalongkorn Memorial Hospital f...