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

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...
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...
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...
Anatomy of the Eyeball01:20

Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
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...

You might also read

Related Articles

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

Sort by
Same author

Usefulness of histological superstudy of sentinel lymph nodes detected with radioisotopes in colon cancer.

Revista espanola de medicina nuclear e imagen molecular·2021
Same author

Usefulness of histological superstudy of sentinel node detected with radioisotope in colon cancer.

Revista espanola de medicina nuclear e imagen molecular·2021
Same author

[Evaluation of compliance with the antibiotic prophylaxis protocol in breast surgery and its effect on the incidence of surgical infection].

Anales del sistema sanitario de Navarra·2019
Same author

[Surgical site infection in colon surgery].

Anales del sistema sanitario de Navarra·2018
Same author

Short-term association between outdoor air pollution and osteoporotic hip fracture.

Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·2018
Same author

[Incidence of surgical site infection in colon surgery and antibiotic prophylaxis adequacy: prospective cohort study].

Anales del sistema sanitario de Navarra·2017
Same journal

Extra-ocular muscle haematoma masquerading uveal prolapse post blunt trauma to the eye: A case report.

Archivos de la Sociedad Espanola de Oftalmologia·2026
Same journal

Multifocal intraocular lenses in refractive lens exchange: Guidelines to optimize their use and indications.

Archivos de la Sociedad Espanola de Oftalmologia·2026
Same journal

The effect of pre- and perioperative anxiety on cardiovascular parameters and intraocular pressure of patients awaiting phacoemulsification surgery.

Archivos de la Sociedad Espanola de Oftalmologia·2026
Same journal

Management of central corneal opacities using manual and femtosecond laser-assisted rotational anterior lamellar autokeratoplasty: A descriptive case series.

Archivos de la Sociedad Espanola de Oftalmologia·2026
Same journal

Evaluation of the anterior hyaloid using intraoperative optical coherence tomography: a key strategy in complex cataract surgery.

Archivos de la Sociedad Espanola de Oftalmologia·2026
Same journal

Unilateral ocular hypertension secondary to frontal mucocele with orbital extension.

Archivos de la Sociedad Espanola de Oftalmologia·2026
See all related articles

Related Experiment Video

Updated: Jun 12, 2026

Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration
10:14

Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration

Published on: May 26, 2023

[Decreased visual acuity from optic disc drusen].

P Gili Manzanaro1, J Yangüela Rodilla, G Rodríguez Caravaca

  • 1Hospital Universitario Fundación Alcorcón, Unidad de Oftalmología, Madrid, España. pgili@fhalcorcon.es

Archivos De La Sociedad Espanola De Oftalmologia
|June 23, 2010
PubMed
Summary
This summary is machine-generated.

Visual acuity reduction from optic disc drusen is uncommon, typically moderate, and linked to visible drusen quantity. Rule out other causes if central vision loss occurs without peripheral field defects.

More Related Videos

Using Retinal Imaging to Study Dementia
09:17

Using Retinal Imaging to Study Dementia

Published on: November 6, 2017

Related Experiment Videos

Last Updated: Jun 12, 2026

Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration
10:14

Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration

Published on: May 26, 2023

Using Retinal Imaging to Study Dementia
09:17

Using Retinal Imaging to Study Dementia

Published on: November 6, 2017

Area of Science:

  • Ophthalmology
  • Optic Nerve Diseases
  • Visual Acuity Research

Context:

  • Optic disc drusen are abnormal calcifications within the optic nerve head.
  • These drusen can affect visual function and are often diagnosed via B-scan ultrasonography.
  • Understanding their impact on visual acuity is crucial for patient management.

Purpose:

  • To assess visual acuity in individuals with optic disc drusen.
  • To investigate the correlation between visual acuity and the presence of superficial optic disc drusen.
  • To determine if the number and visibility of drusen influence visual outcomes.

Summary:

  • A study of 100 eyes with optic disc drusen found average visual acuity of 0.82.
  • Worse visual acuity was associated with visible drusen and a higher number of drusen.
  • Decreased visual acuity solely due to drusen occurred in only 5 cases; other causes were more common.

Impact:

  • Optic disc drusen rarely cause significant visual acuity loss.
  • When visual acuity is reduced, it's often moderate and linked to peripheral visual field disturbances.
  • The findings emphasize the importance of considering co-existing conditions when visual impairment is present.