在自然和缩回眼睑位置期间获得的外推角膜巩膜地形数据之间的一致性。

IF 2.8 3区 医学 Q1 OPHTHALMOLOGY
Ophthalmic and Physiological Optics Pub Date : 2025-05-01 Epub Date: 2025-02-21 DOI:10.1111/opo.13473
Rohan P J Hughes, Asif Iqbal, Grace Hoffmann, Joseph Holden, Rebecca Kitson, Huan Nguyen-Tran, Erika Thompson, Julie Xiao, Stephen J Vincent
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引用次数: 0

摘要

目的:通过比较自然眼睑位置和收缩眼睑位置的测量结果,研究孔径大小(角膜巩膜数据覆盖范围)对Pentacam HR从角膜巩膜剖面(CSP)软件导出的外推巩膜矢状高度数据的影响。方法:应用Pentacam HR CSP测量20例角膜正常的年轻健康成人(年龄22岁~ 60岁)的左眼角膜巩膜地形图,并将眼睑置于自然主凝视静止位置,用金属丝镜牵回眼睑。测量和推断的矢状面高度数据从仪器中导出,并使用定制软件在弦直径(10.0、12.5、15.0和17.5 mm)和位置(上、下、鼻和颞)范围内进行分析。结果:眼睑缩回增加了12.5和15.0 mm弦直径的数据覆盖率(360°范围内可用数据点的百分比)(分别为25%和35%)。结论:眼睑缩回大大增加了12.5和15.0 mm弦直径的数据覆盖率。在自然位置和收缩位置获得的测量数据中,外推的矢状高度数据在上眼睑位置(12.5、15.0和17.5 mm弦直径)和下眼睑位置和鼻眼睑位置(17.5 mm弦直径)上有显著差异。在眼睑自然位置获得的外推矢状高度值通常大于眼睑收缩时获得的值,很可能是由于可用于外推的测量数据量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Agreement between extrapolated corneoscleral topographical data obtained during natural and retracted eyelid positions.

Purpose: To examine the influence of aperture size (corneoscleral data coverage) on extrapolated scleral sagittal height data generated by the Pentacam HR derived from the Corneo Scleral Profile (CSP) software, by comparing measurements obtained during natural and retracted eyelid positions.

Methods: Corneoscleral topography of the left eye of 20 young (age: 22 [3] years) healthy adults with normal corneas was measured using the Pentacam HR CSP with the eyelids in their natural primary gaze resting position and during eyelid retraction with a wire speculum. The measured and extrapolated sagittal height data were exported from the instrument and analysed over a range of chord diameters (10.0, 12.5, 15.0 and 17.5 mm) and locations (superior, inferior, nasal and temporal) using customised software.

Results: Eyelid retraction increased data coverage (% of available data points within 360°) for the 12.5 and 15.0 mm chord diameters (by 25% and 35%, respectively, p < 0.001), but by less than 10% for the 10.0 and 17.5 mm chord diameters. Significant differences in extrapolated sagittal height data were observed between the natural and retracted eyelid positions with respect to chord diameter and location (both p < 0.001), with the greatest difference observed superiorly for a 17.5 mm chord diameter (mean extrapolated sagittal height difference, retracted minus natural: -447 ± 401 μm, p < 0.0001).

Conclusions: Eyelid retraction substantially increased data coverage for the 12.5 and 15.0 mm chord diameters. Significant differences in the extrapolated sagittal height data generated from measurements obtained during natural and retracted eyelid positions were observed for the superior location (12.5, 15.0 and 17.5 mm chord diameters) and inferior and nasal locations (17.5 mm chord diameter). Extrapolated sagittal height values obtained during the natural eyelid position were typically greater than those obtained with eyelid retraction, most likely due to the amount of measured data available for extrapolation.

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来源期刊
CiteScore
5.10
自引率
13.80%
发文量
135
审稿时长
6-12 weeks
期刊介绍: Ophthalmic & Physiological Optics, first published in 1925, is a leading international interdisciplinary journal that addresses basic and applied questions pertinent to contemporary research in vision science and optometry. OPO publishes original research papers, technical notes, reviews and letters and will interest researchers, educators and clinicians concerned with the development, use and restoration of vision.
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