Quantitative Analysis of Posterior Staphyloma Using Foveal Angulation: Relationship to Leftover Astigmatism in Pseudophakic Eyes.

IF 3 3区医学 Q1 OPHTHALMOLOGY

Journal of refractive surgery Pub Date : 2025-07-01 DOI:10.3928/1081597X-20250520-01

Richard Mackool, Li Wang, Maimunah Virk, Richard Mackool

{"title":"Quantitative Analysis of Posterior Staphyloma Using Foveal Angulation: Relationship to Leftover Astigmatism in Pseudophakic Eyes.","authors":"Richard Mackool, Li Wang, Maimunah Virk, Richard Mackool","doi":"10.3928/1081597X-20250520-01","DOIUrl":null,"url":null,"abstract":"Purpose: To describe a method of measuring the amount of angulation of the foveal region of the macula in eyes with posterior staphyloma (PS) and then to determine whether or not those eyes manifest a refractive astigmatism as a result of the PS.Methods: Pseudophakic eyes with an axial length (AL) of 25 mm or greater were included in this retrospective study. Using vector analysis, \"leftover astigmatism\" (LOA) was calculated by subtracting total keratometric astigmatism (TKA) as measured with the IOLMaster 700 (Carl Zeiss Meditec AG) from the manifest refractive astigmatism (MRA) after vector subtraction of the astigmatic effect of a toric IOL, if present. The amount of LOA was analyzed to determine its relationship, if any, to the angulation of the fovea as measured by optical coherence tomography.Results: A total of 92 eyes of 58 patients (average age: 71.4 years) were enrolled. Eyes were separated into groups based on the degree of foveal angulation. No correlation was found (P > .05) between the amount of LOA and the degree of foveal angulation between all groups. There was no significant difference in LOA between the non-staphyloma (foveal angulation 10 degrees or less) and staphyloma (foveal angulation 11 degrees or greater) groups (P > .05), regardless of the amount of foveal angulation that was present.Conclusions: Foveal angulation can be used to objectively measure PS, a condition that does not contribute to refractive astigmatism. [J Refract Surg. 2025;41(7):e667-e673.].","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"41 7","pages":"e667-e673"},"PeriodicalIF":3.0000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of refractive surgery","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3928/1081597X-20250520-01","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Purpose: To describe a method of measuring the amount of angulation of the foveal region of the macula in eyes with posterior staphyloma (PS) and then to determine whether or not those eyes manifest a refractive astigmatism as a result of the PS.

Methods: Pseudophakic eyes with an axial length (AL) of 25 mm or greater were included in this retrospective study. Using vector analysis, "leftover astigmatism" (LOA) was calculated by subtracting total keratometric astigmatism (TKA) as measured with the IOLMaster 700 (Carl Zeiss Meditec AG) from the manifest refractive astigmatism (MRA) after vector subtraction of the astigmatic effect of a toric IOL, if present. The amount of LOA was analyzed to determine its relationship, if any, to the angulation of the fovea as measured by optical coherence tomography.

Results: A total of 92 eyes of 58 patients (average age: 71.4 years) were enrolled. Eyes were separated into groups based on the degree of foveal angulation. No correlation was found (P > .05) between the amount of LOA and the degree of foveal angulation between all groups. There was no significant difference in LOA between the non-staphyloma (foveal angulation 10 degrees or less) and staphyloma (foveal angulation 11 degrees or greater) groups (P > .05), regardless of the amount of foveal angulation that was present.

Conclusions: Foveal angulation can be used to objectively measure PS, a condition that does not contribute to refractive astigmatism. [J Refract Surg. 2025;41(7):e667-e673.].

查看原文本刊更多论文

中央凹角定量分析假晶状眼后葡萄肿与剩余散光的关系。

目的：描述一种测量后葡萄肿（PS）眼黄斑中央凹区角度大小的方法，并以此确定这些眼是否因后葡萄肿而出现屈光散光。方法：回顾性研究眼轴长（AL）大于等于25mm的假晶状体眼。通过矢量分析，从明显屈光散光（MRA）中减去用IOLMaster 700（卡尔蔡司mediitec AG）测量的总角膜屈光散光（TKA），计算出“剩余散光”（LOA）。分析LOA的量，以确定其关系，如果有的话，通过光学相干断层扫描测量的中央凹角度。结果：共入组58例患者92只眼，平均年龄71.4岁。根据中央凹成角的程度将眼睛分成不同的组。各组间LOA量与中央凹成角程度无相关性（P < 0.05）。无葡萄肿（中央凹成角小于10度）组与葡萄肿（中央凹成角大于11度）组之间的LOA无显著差异（P < 0.05），与中央凹成角的大小无关。结论：中央凹角度可用于客观测量PS，这种情况不会导致屈光散光。[J].中国光学精密工程，2015;41(7):667- 673。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

$Journal of refractive surgery$

Journal of refractive surgery 医学-外科

CiteScore

5.10

自引率

12.50%

发文量

160

审稿时长

4-8 weeks

期刊介绍： The Journal of Refractive Surgery, the official journal of the International Society of Refractive Surgery, a partner of the American Academy of Ophthalmology, has been a monthly peer-reviewed forum for original research, review, and evaluation of refractive and lens-based surgical procedures for more than 30 years. Practical, clinically valuable articles provide readers with the most up-to-date information regarding advances in the field of refractive surgery. Begin to explore the Journal and all of its great benefits such as: • Columns including “Translational Science,” “Surgical Techniques,” and “Biomechanics” • Supplemental videos and materials available for many articles • Access to current articles, as well as several years of archived content • Articles posted online just 2 months after acceptance.