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Related Concept Videos

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...
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...
Microbiome of the Eye01:22

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
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...
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...

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Related Experiment Video

Updated: Jun 18, 2026

Establishment of a Severe Dry Eye Model Using Complete Dacryoadenectomy in Rabbits
07:43

Establishment of a Severe Dry Eye Model Using Complete Dacryoadenectomy in Rabbits

Published on: January 8, 2020

[Dry eye relevant to ocular surgery].

Zu-Guo Liu1, Wei Li

  • 1Eye Institute and Affiliated Xiamen Eye Center, Xiamen University, Xiamen 361005, China. zuguol@yahoo.com

[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology
|December 5, 2009
PubMed
Summary
This summary is machine-generated.

Surgery-associated dry eye, a common post-operative complication, stems from ocular surface damage and nerve disruption. Further research into its mechanisms, prevention, and treatment is crucial for improving surgical outcomes.

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Related Experiment Videos

Last Updated: Jun 18, 2026

Establishment of a Severe Dry Eye Model Using Complete Dacryoadenectomy in Rabbits
07:43

Establishment of a Severe Dry Eye Model Using Complete Dacryoadenectomy in Rabbits

Published on: January 8, 2020

Establishment of A Mouse Model of Aqueous Deficiency Dry Eye
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Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome
03:40

Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome

Published on: April 25, 2025

Area of Science:

  • Ophthalmology
  • Ocular Surface Disease
  • Surgical Complications

Context:

  • Dry eye is a frequent complication following various eye surgeries.
  • Multiple factors contribute, including surgical trauma, corneal nerve damage, irrigation, and post-operative medications.

Purpose:

  • To highlight the causes and significance of surgery-associated dry eye.
  • To emphasize the need for effective prevention and treatment strategies.

Summary:

  • Surgery-associated dry eye results from damage to ocular surface cells and corneal nerves, exacerbated by surgical irrigation and medications.
  • Key contributing factors include epithelial cell damage, sensory nerve transection, tear film irrigation, and post-operative drug use.

Impact:

  • Effective prevention and treatment of dry eye can significantly improve patient outcomes after eye surgery.
  • Further research is essential to deepen understanding and develop better management strategies for this condition.