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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...

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Updated: Jan 13, 2026

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

早期の点状感度変動は緑内障の進行を予測する

Jayter Silva Paula, Denny Marcos Garcia, Yuri Ribeiro Carneiro

medRxiv : the preprint server for health sciences

|January 8, 2026

まとめ

この要約は機械生成です。

より大きな早期の点状視野（VF）感度変動は、局所的な緑内障の進行を独立して予測します。この機能的な変動性は、基盤となる不安定性を強調しており、VF変動性を潜在的な臨床試験の評価項目として示唆しています。

キーワード:

緑内障視野感度変動予測進行臨床試験

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科学分野:

眼科学
緑内障研究
視野分析

背景:

緑内障は視力喪失を特徴とする進行性の視神経疾患です。
緑内障における局所的な進行の予測は困難です。
点状視野（VF）感度の変動は、初期の不安定性を示す可能性があります。

研究の目的:

点状VF感度変動と局所的な緑内障進行との関係を評価すること。
初期の機能的変動性が将来の視力喪失を予測するかどうかを判断すること。

主な方法:

アフリカ系アメリカ人および緑内障評価研究（ADAGES）の前向きコホートデータの後向き分析。
初期の30か月間の総偏差（TD）残差の点状標準偏差（SD）を使用してVF変動を評価しました。
点状進行を、各部位で確認された7デシベルを超える感度低下と定義しました。

主要な成果:

12.2年間に視野の5.8%で進行が見られ、緑内障患者では進行が高かったです。
進行した部位は、進行しなかった部位（1.14デシベル）よりも大きな初期変動（1.75デシベル）を示しました。
多変量モデルでは、より高い初期変動とより速い初期傾斜が進行と有意に関連していました。

結論:

より大きな初期の点状VF変動は、将来の局所的な緑内障進行を独立して予測します。
初期の機能的変動性は、視野における基盤となる局所的な不安定性を反映しています。
点状VF変動は、緑内障進行の潜在的な予測因子であり、臨床試験の実行可能な評価項目です。