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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...
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...
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...
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...
Muscles of the Eye01:20

Muscles of the Eye

The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...

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Related Experiment Video

Updated: Jun 28, 2026

Induction of Ocular Surface Inflammation and Collection of Involved Tissues
06:38

Induction of Ocular Surface Inflammation and Collection of Involved Tissues

Published on: August 4, 2022

[Inflammatory diseases of the orbit].

A Zimmer1, W Reith

  • 1Klinik für Diagnostische und Interventionelle Neuroradiologie, Universitätsklinikum des Saarlandes, Kirrberger Strasse, 66421 Homburg. a.e.zimmer@gmx.de

Der Radiologe
|November 13, 2008
PubMed
Summary

Orbital inflammatory diseases, common in young people due to sinusitis, can also affect adults. Prompt diagnosis and imaging are crucial to differentiate inflammation from tumors and prevent vision loss.

Area of Science:

  • Ophthalmology
  • Radiology
  • Pathology

Context:

  • Orbital inflammatory diseases are significant causes of morbidity, particularly in children and adolescents, often stemming from acute sinusitis.
  • In adults, idiopathic orbital inflammation (formerly pseudotumor orbitae) is a primary concern.
  • Clinical signs include painful exophthalmos, erythema, edema, and impaired ocular motility.

Purpose:

  • To highlight the diagnostic challenges in differentiating orbital inflammation from malignancy using imaging.
  • To emphasize the importance of identifying and managing potential complications like cavernous sinus thrombosis and meningoencephalitis.
  • To underscore the necessity of timely diagnosis and treatment to prevent severe outcomes such as vision loss or mortality.

Summary:

More Related Videos

Three-Dimensional Reconstruction of Orbital Fractures
08:18

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Related Experiment Videos

Last Updated: Jun 28, 2026

Induction of Ocular Surface Inflammation and Collection of Involved Tissues
06:38

Induction of Ocular Surface Inflammation and Collection of Involved Tissues

Published on: August 4, 2022

Three-Dimensional Reconstruction of Orbital Fractures
08:18

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

  • Inflammatory orbital conditions present with varied symptoms and etiologies, differing between pediatric and adult populations.
  • Advanced imaging techniques, including CT and MRI, are essential for accurate diagnosis, staging, and complication detection.
  • Distinguishing inflammatory lesions from malignant tumors is a key challenge for clinicians and radiologists.

    • Impact:

    • Improved diagnostic accuracy through combined CT and MRI can lead to better patient outcomes.
    • Early detection and management of orbital inflammation can mitigate the risk of irreversible vision loss and systemic spread.
    • Understanding the distinct causes and presentations in different age groups aids in tailored clinical management strategies.