Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

1.7K
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...
1.7K
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

4.3K
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...
4.3K
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

1.1K
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...
1.1K
Muscles of the Eye01:20

Muscles of the Eye

6.4K
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...
6.4K
Glaucoma: Overview01:25

Glaucoma: Overview

1.7K
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...
1.7K
Ophthalmic Drug Delivery Systems01:23

Ophthalmic Drug Delivery Systems

285
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...
285

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evidence for the Collective Nature of Radial Flow in Pb+Pb Collisions with the ATLAS Detector.

Physical review letters·2026
Same author

Evidence for the Dimuon Decay of the Higgs Boson in pp Collisions with the ATLAS Detector.

Physical review letters·2025
Same author

Evidence for Longitudinally Polarized W Bosons in the Electroweak Production of Same-Sign W Boson Pairs in Association with Two Jets in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector.

Physical review letters·2025
Same author

Nutrition in sport: an opportunity to balance performance, sustainability and Preventive Medicine.

Research in sports medicine (Print)·2025
Same author

Observation of tt[over ¯] Production in Pb+Pb Collisions at sqrt[s_{NN}]=5.02  TeV with the ATLAS Detector.

Physical review letters·2025
Same author

Search for Dark Matter Produced in Association with a Dark Higgs Boson in the bb[over ¯] Final State Using pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector.

Physical review letters·2025
Same journal

Unexpected evolution of COVID-19 in a heart transplant patient with multimorbidity recently submitted to thoracic surgery.

Minerva chirurgica·2020
Same journal

Ongoing clinical trials on axillary management.

Minerva chirurgica·2020
Same journal

Axillary management after neoadjuvant treatment.

Minerva chirurgica·2020
Same journal

Axillary observation alone versus sentinel node biopsy: past, present and future perspectives.

Minerva chirurgica·2020
Same journal

Patient flow for the management of ostomy patients.

Minerva chirurgica·2020
Same journal

The management of "fragile" and suspected COVID-19 surgical patients during pandemic: an Italian single-center experience.

Minerva chirurgica·2020
See all related articles

Related Experiment Video

Updated: May 6, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

870

Ectropion, entropion, trichiasis.

A Fea1, D Turco, A G Actis

  • 1Department of Surgical Sciences, Eye Clinic University of Turin, Turin, Italy - alessandro.actis@gmail.com.

Minerva Chirurgica
|November 1, 2013
PubMed
Summary
This summary is machine-generated.

This review details ectropion, entropion, and trichiasis, common eyelid conditions causing eye irritation. Surgical intervention is the primary treatment, with supportive therapies offering temporary relief.

More Related Videos

Iris Fixation via External Pentagram Suturing
05:22

Iris Fixation via External Pentagram Suturing

Published on: May 5, 2022

3.2K
Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
07:29

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis

Published on: November 12, 2015

19.6K

Related Experiment Videos

Last Updated: May 6, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

870
Iris Fixation via External Pentagram Suturing
05:22

Iris Fixation via External Pentagram Suturing

Published on: May 5, 2022

3.2K
Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
07:29

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis

Published on: November 12, 2015

19.6K

Area of Science:

  • Ophthalmology
  • Oculoplastics

Background:

  • Ectropion, entropion, and trichiasis are common eyelid pathologies.
  • These conditions present with symptoms like eye redness, tearing, and irritation.
  • An imbalance between the anterior and posterior eyelid lamellae characterizes these disorders.

Purpose of the Study:

  • To describe the clinical features of ectropion, entropion, and trichiasis.
  • To outline the therapeutic options for these eyelid conditions.

Main Methods:

  • This is a review article.
  • Literature search on eyelid pathologies and their management.

Main Results:

  • Ectropion, entropion, and trichiasis frequently affect the lower eyelid.
  • The primary treatment modality is surgical correction.
  • Non-surgical or "parasurgical" approaches can provide temporary symptom management.

Conclusions:

  • Understanding the pathophysiology of eyelid lamellar imbalance is crucial.
  • Surgical treatment is the definitive approach for ectropion, entropion, and trichiasis.
  • Adjunctive therapies may be used for symptomatic relief pending surgery.