Peripheral Refraction Using Ancillary Retinoscope Component (P-ARC)

Translational Vision Science & Technology, Journal Year: 2024, Volume and Issue: 13(4), P. 7 - 7

Published: April 3, 2024

Purpose: To assess the agreement of retinoscope-based peripheral refraction techniques with criterion standard open-field autorefractor. Methods: Fifty young adults (mean age, 24 ± 3 years) participated in this study. Two masked, experienced senior examiners carried out central and at temporal 22° (T22°) nasal (N22°) eccentricities. Peripheral were (a) using ancillary retinoscope component (P-ARC), (b) retinoscopy eye rotation, (c) values was compared an autorefractor (Shinn Nippon NVision-K) to agreement. All measurements taken from right under noncycloplegic conditions. Results: The mean difference ±95% limits obtained P-ARC T22° (+0.11 diopters [D] 1.20 D; P = 0.20) or N22° (+0.13 D 1.16 0.13) comparable rotation technique showed a significant for (+0.30 1.26 0.002); however, there (+0.14 0.10). With respect identification patterns, able identify relative hyperopia most participants (77%). Conclusions: can be another approache estimating identifying its patterns regular clinical setting. Translational Relevance: Retinoscope has high potential guide enable care practitioners perform effective myopia management.

Language: Английский

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Observation of peripheral refraction in myopic anisometropia in young adults

International Journal of Ophthalmology, Journal Year: 2023, Volume and Issue: 16(12), P. 2082 - 2088

Published: Nov. 23, 2023

To investigate the differences in retinal refraction difference values (RDVs) of adult patients with myopic anisometropia compared those without anisometropia, and to relationship between ocular biometric measurements relative peripheral refraction.This clinical observation study included 130 myopia (-0.25 -10.00 D) October 2022 January 2023 aged 18 40y. The were divided into (n=63; binocular ≥1.00 non-anisometropia (n=67; <1.00 groups accordingly. Ocular performed by optical biometrics corneal topography assess steep keratometry (Ks), flap (Kf), axial length (AL), astigmatism (CYL; Ks-Kf), surface regularity index (SRI), asymmetry (SAI), central thickness (CCT). RDV was measured at five areas from fovea 53 degrees (RDV-0-10, RDV-10-20, RDV-20-30, RDV-30-40, RDV-40-53), total (TRDV) degrees, four regions, including RDV-superior, RDV-inferior, RDV-temporal, RDV-nasal. An analysis Spearman correlation carried out examine spherical equivalent (SE) biological parameters.Within RDV-20-53, both showed hyperopic defocus, increase corresponds eccentricity. In group, TRDV, more eyes had significantly higher RDV-temporal than less eyes. (P<0.05). there no significant different eccentricities (P>0.05). There a negative SE TRDV (r=-0.205, P=0.001), RDV-20-53 (r=-0.281, -0.183, -0.176, P<0.05), RDV-superior (r=-0.251, P<0.001), (r=-0.230, CYL RDV-10-30 (r=-0.147, -0.180, SRI RDV-0-20 (r=-0.190, -0.170, P<0.05). AL positive RDV-20-30 (r=0.164, P=0.008) (r=0.160, P=0.010).More show defocus. Diopter morphology may affect

Language: Английский

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Comparison of the Myopia Control Effectiveness and Defocus of OK and HAL in Adolescents

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 18, 2024

Abstract Purpose To compare the control effectiveness and periretinal defocus between orthokeratology(OK) highly aspherical lenslets(HAL) in adolescents with myopia. Methods In this prospective study, 211 children( eyes) were enrolled Beijing Ming Vision Ophthalmology October 2022 February 2023. According to myopic correction method, children divided into three subgroups: OK, HAL, Single-Vision spectacles (SVS); according spherical equivalent (SE), they further two A-1.0 ≤ SE≤-2.0D, B-2.0 < SE≤-3.0 D.All followed up for12mo,and changes axial length before after treatment recorded factors affecting corneal shaping force for one day post-OK analyzed. Results AL growth OK HAL was lower than that SVS 6,9,12mo. Comparison of difference amount change HAL: 6mo( Z=-1.367 ,P = 0.317) ; 9mo(Z=-1.45, P 0.211) ;12mo( Z=-1.52, 0.365 ), not statistically significant (-1.0 SE≤-2.0D). The RDV270-300° subgroup higher subgroup(Z 1.382,P 0.016),and other areas,the subgroup. Em,SRI ,and thickness significantly associated force. Conclusions is most effective optical treatments controlling myopia affect under different parameters are different.For mild myopia, can achieve same as OK.

Language: Английский

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Peripheral Refraction and Aberrations in Myopic Eyes After Small-Incision Lenticule Extraction (SMILE) Surgery

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: April 5, 2024

Purpose To investigate peripheral refraction and aberrations in myopic eyes after small-incision lenticule extraction (SMILE) surgery to understand the relationship between visual symptoms wide-field wavefront aberrations. Methods A total of 28 patients with myopia astigmatism underwent SMILE surgery. Peripheral were measured both before using a modified Hartmann-Shack (HS) sensor-based aberrometer. The from axis (0°) (15°) horizontal vertical directions measured. questionnaire was administered assess quality Results Post-surgery, relative exhibited reduced hyperopia. spherical aberration \({Z}_{4}^{0}\) changed 0.12 µm 0.24 on optical axis. However, spatial pattern remained constant, independent line sight. Greater variability observed direction retina than Coma significantly increased appeared be more variable compared majority satisfied postoperative daytime vision; there no significant deterioration nighttime preoperative levels. Conclusion Our study demonstrated that eyes, asymmetry along due incision size variations. Notably, large-field not found significant.

Language: Английский

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Autorefraction: Objective Estimation of Refractive Error

Published: Jan. 1, 2024

Language: Английский

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