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Glaucoma: Overview01:25

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: Treatment01:27

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: Treatment01:28

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...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...

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関連する実験動画

Updated: Jun 3, 2026

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
08:30

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation

Published on: March 12, 2016

グラウコーマ (光眼腫) とは

Harry A Quigley1

  • 1Glaucoma Service and Dana Center for Preventive Ophthalmology, Wilmer Ophthalmological Institute, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA. hquigley@jhmi.edu

Lancet (London, England)
|April 2, 2011
PubMed
まとめ
この要約は機械生成です。

グラウコマは,世界中で6000万人に影響し,視力喪失が不可逆になるまで,しばしば診断されない. 改善された検出と遺伝子治療のような新しい治療法は,この慢性眼疾患の管理に不可欠です.

さらに関連する動画

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
10:10

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

Published on: February 15, 2022

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
13:47

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

Published on: June 3, 2018

関連する実験動画

Last Updated: Jun 3, 2026

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
08:30

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation

Published on: March 12, 2016

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
10:10

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

Published on: February 15, 2022

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
13:47

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

Published on: June 3, 2018

科学分野:

  • オフタルモロジック (眼科)
  • 神経科学は神経科学である.

背景:

  • グラウコマは,開角と閉角の形態をカバーし,世界中の何百万人もの人に影響を及ぼし,重要な視覚機能の喪失と双方の失明を引き起こします.
  • グラウコマの症例の大部分は,先進国でも,初期段階で無症状であるため,診断されないままです.

研究 の 目的:

  • グラウコマの世界的な負担と,症例検出戦略の強化の緊急の必要性を強調する.
  • この慢性疾患に対する毎日の眼滴の順守が悪いことなど,現在の治療上の課題について話し合ってください.
  • 神経保護戦略や遺伝子療法など,将来の治療の可能性を探求し,中枢神経系疾患との類似を図る.

主な方法:

  • グラウコマの罹患率と影響を推定するために,人口ベースの調査データのレビュー.
  • 現在の治療方法の分析と患者の遵守に関する問題.
  • 病気の病原性および他の分野における進歩に基づく潜在的な治療戦略の探索.

主要な成果:

  • グラウコマは40歳以上の成人の40人に1人に罹患し,世界全体で合計6000万人に達し,8.4百万人が双眼失明しています.
  • グラウコマの視力喪失は不可逆的であり,早期発見の必要性を強調しています.
  • 現在の治療法では,他の慢性全身疾患と同様に,患者のアデバーンスに関する課題に直面しています.

結論:

  • 視力の不可逆的な喪失を防ぐために,グラウコマを早期に検出するための改善された方法が不可欠です.
  • 将来の研究は,神経保護剤と遺伝子治療に焦点を当てて,中枢神経系疾患の病原体と既存の眼性遺伝子治療との類似性を活用することができます.