A Morphometric Study of the Pars Plana of the Ciliary Body in Human Cadaver Eyes

Vision Pub Date : 2024-05-08 DOI:10.3390/vision8020030
Jaime Guedes, Bruno F. Fernandes, D. J. Mora-Paez, Rodrigo Brazuna, Alexandre Batista da Costa Neto, D. Amaral, Adriano Cypriano Faneli, Ricardo Danilo Chagas Oliveira, Adroaldo de Alencar Costa Filho, Adalmir Morterá Dantas
{"title":"A Morphometric Study of the Pars Plana of the Ciliary Body in Human Cadaver Eyes","authors":"Jaime Guedes, Bruno F. Fernandes, D. J. Mora-Paez, Rodrigo Brazuna, Alexandre Batista da Costa Neto, D. Amaral, Adriano Cypriano Faneli, Ricardo Danilo Chagas Oliveira, Adroaldo de Alencar Costa Filho, Adalmir Morterá Dantas","doi":"10.3390/vision8020030","DOIUrl":null,"url":null,"abstract":"This study aimed to determine the pars plana length in postmortem human eyes using advanced morphometric techniques and correlate demographics to ocular metrics such as age, sex, ethnicity, and axial length. Between February and July 2005, we conducted a cross-sectional observational study on 46 human cadaver eyes deemed unsuitable for transplant by the SBO Eye Bank. The morphometric analysis was performed on projected images using a surgical microscope and a video-microscopy system with a 20.5:1 correction factor. The pars plana length was measured three times per quadrant, with the final value being the mean of these measurements. Of the 46 eyes collected, 9 were unsuitable for the study due to technical constraints in conducting intraocular measurements. Overall, the average axial length was 25.20 mm. The average pars plana length was 3.8 mm in all quadrants, with no measurements below 2.8 mm or above 4.9 mm. There were no statistically significant variations across quadrants or with age, sex, axial length, or laterality. Accurately defining the pars plana dimensions is crucial for safely accessing the posterior segment of the eye and minimizing complications during intraocular procedures, such as intravitreal injections and vitreoretinal surgeries.","PeriodicalId":23649,"journal":{"name":"Vision","volume":" 9","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vision","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/vision8020030","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

This study aimed to determine the pars plana length in postmortem human eyes using advanced morphometric techniques and correlate demographics to ocular metrics such as age, sex, ethnicity, and axial length. Between February and July 2005, we conducted a cross-sectional observational study on 46 human cadaver eyes deemed unsuitable for transplant by the SBO Eye Bank. The morphometric analysis was performed on projected images using a surgical microscope and a video-microscopy system with a 20.5:1 correction factor. The pars plana length was measured three times per quadrant, with the final value being the mean of these measurements. Of the 46 eyes collected, 9 were unsuitable for the study due to technical constraints in conducting intraocular measurements. Overall, the average axial length was 25.20 mm. The average pars plana length was 3.8 mm in all quadrants, with no measurements below 2.8 mm or above 4.9 mm. There were no statistically significant variations across quadrants or with age, sex, axial length, or laterality. Accurately defining the pars plana dimensions is crucial for safely accessing the posterior segment of the eye and minimizing complications during intraocular procedures, such as intravitreal injections and vitreoretinal surgeries.
人眼睫状体旁形态计量学研究
本研究旨在利用先进的形态计量技术确定死后人类眼睛的眼旁长度,并将人口统计学与年龄、性别、种族和轴长等眼部指标相关联。2005 年 2 月至 7 月期间,我们对 46 只被 SBO 眼库认为不适合移植的尸体眼球进行了横断面观察研究。形态计量分析是使用手术显微镜和校正系数为 20.5:1 的视频显微镜系统在投影图像上进行的。每个象限的眼球旁长度测量三次,最终值为这些测量值的平均值。在采集的 46 只眼睛中,有 9 只由于眼内测量的技术限制而不适合进行研究。总体而言,平均轴长为 25.20 毫米。所有象限的平均眼轴长度为 3.8 毫米,没有低于 2.8 毫米或高于 4.9 毫米的测量值。不同象限或年龄、性别、轴向长度或侧位之间的差异均无统计学意义。准确定义眼底旁的尺寸对于安全进入眼球后段以及在玻璃体内注射和玻璃体视网膜手术等眼内手术中尽量减少并发症至关重要。
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
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信