相关实验视频

Updated: Jul 2, 2025

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

机器学习衍生的基线视觉场模式预测眼睛高血压治疗研究中的未来玻璃眼开始

Rishabh K Singh^1,2, Sophie Smith³, John Fingert⁴

¹Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States.

Investigative ophthalmology & visual science

|February 23, 2024

概括

对眼睛高血压视觉场的原型分析确定了预测青光眼的发病和进展的新模式. 这种机器学习方法比传统方法 (如模式标准偏差) 提供了更易于解释的风险分层.

科学领域:

眼科医生眼科眼科
机器学习机器学习
数据科学数据科学数据科学

背景情况:

眼睛高血压治疗研究 (OHTS) 确定了初级开角青光眼 (POAG) 的危险因素,例如模式标准偏差 (PSD).
原型分析是一种无监督的机器学习技术,通过发现基线视觉场 (VF) 中的模式,为风险分层提供了一种新的方法.

研究的目的:

探索原型分析在识别基线视野 (VFs) 模式中的实用性,以在患有眼高血压的患者中对初级开角青光眼 (POAG) 的风险分层.
将基于原型分析的模型的预测性能与PSD等传统风险因素进行比较.

主要方法:

从OHTS数据集中对8494个基线24-2VF进行了原型分析.
一个受到惩罚的Cox比例危险模型确定了与POAG发病和VF进展相关的歧视原型 (AT).
评估了基于AT的模型的预测准确性 (C指数),并与已建立的OHTS模型进行了比较.

主要成果:

一个最佳模型确定了19种原型 (AT),其中AT9,AT11和AT7是最常见的.
基于AT的模型实现了POAG发病预测的C指数为0.75.
特定的ATs (AT5,AT8,AT15,AT17) 与POAG风险增加显著相关,而AT5,AT10和AT14与迅速的VF进展相关. 在存在高风险的AT时,PSD的意义下降.

结论:

基线VF含有微妙的模式,可预测POAG在眼睛高血压患者的发病和进展.
原型分析提供了可解释的,对青光眼的特定见解,可能增强临床风险评估.
对于POAG的PSD预测值受到基线特定高风险原型模式存在的影响.

更多相关视频

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis

Published on: June 3, 2018

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents

Published on: February 15, 2022

相关概念视频

Glaucoma: Overview

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...

Open Angle Glaucoma: Treatment

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...

Angle Closure Glaucoma: Treatment

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...