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Related Concept Videos

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...
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...
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...
Ophthalmic Drug Delivery Systems01:23

Ophthalmic Drug Delivery Systems

Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...

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Related Experiment Video

Updated: Jun 18, 2026

Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

Do glaucoma patients use eye drops correctly?

M Hosoda1, S Yamabayashi, M Furuta

  • 1Department of Ophthalmology, Yamanashi Medical College Yamanashi, Japan.

Journal of Glaucoma
|November 19, 2009
PubMed
Summary
This summary is machine-generated.

Glaucoma patients often incorrectly use topical eye drops, with bottle-to-eye contact being common. Proper ophthalmologist instruction on eyedrop instillation is crucial for improving patient compliance and quality of life.

Related Experiment Videos

Last Updated: Jun 18, 2026

Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

Area of Science:

  • Ophthalmology
  • Patient Care

Background:

  • Glaucoma management relies heavily on topical medications.
  • Effective drug delivery is essential for therapeutic success in glaucoma patients.

Purpose of the Study:

  • To evaluate the adherence and technique of topical medication use among glaucoma patients.
  • To identify common errors in eyedrop instillation by glaucoma patients.

Main Methods:

  • A study involving 142 glaucoma patients assessed their eyedrop application technique.
  • Observation of patient self-administration of topical eye drops was conducted prior to examination.

Main Results:

  • 39.4% of patients used only one drop, while instillation quantity varied with age.
  • Ocular surface contact with the dropper bottle occurred in 54.9% of patients, increasing with age.
  • Only 2.8% of patients performed post-instillation eye closure and punctual occlusion.

Conclusions:

  • Ophthalmologists must provide clear instructions on correct topical medication application.
  • Improved patient education can enhance medication compliance and patient quality of life in glaucoma therapy.