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...
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...
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...
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,...
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...
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...

You might also read

Related Articles

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

Sort by
Same author

Macroscopic and histopathologic analyses of a subluxated intraocular lens in a severely contracted capsular bag.

Clinical & experimental ophthalmology·2020
Same author

Prospective Clinical Study of Keratoconus Progression in Patients Awaiting Corneal Cross-linking.

Cornea·2020
Same author

A cost minimisation analysis comparing iStent accompanying cataract surgery and selective laser trabeculoplasty versus topical glaucoma medications in a public healthcare setting in New Zealand.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·2018
Same author

Role of Concomitant Triamcinolone Acetonide Injection in Small-Gauge Vitrectomy for Idiopathic Epiretinal Membrane Peel.

Asia-Pacific journal of ophthalmology (Philadelphia, Pa.)·2015
Same author

The incidence of retinal breaks in the presenting and fellow eyes in patients with acute symptomatic posterior vitreous detachment and their associated risk factors.

Asia-Pacific journal of ophthalmology (Philadelphia, Pa.)·2015
Same author

Corneal microstructural changes in nerve fiber, endothelial and epithelial density after cataract surgery in patients with diabetes mellitus.

Cornea·2014

Related Experiment Video

Updated: Jun 6, 2026

Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo
08:17

Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo

Published on: September 22, 2017

Do Optic Disc Drusen Cause Unilateral Nyctalopia?

Yi Wei Goh1, Alex Buller

  • 1Department of Ophthalmology, Hawkes Bay District Health Board, Hastings, New Zealand.

Case Reports in Ophthalmology
|November 25, 2010
PubMed
Summary
This summary is machine-generated.

This case report highlights unilateral nyctalopia, or night blindness, linked solely to optic disc drusen in one eye. Extensive investigations ruled out other causes for this vision symptom.

More Related Videos

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

The Rodent Model of Nonarteritic Anterior Ischemic Optic Neuropathy (rNAION)
06:49

The Rodent Model of Nonarteritic Anterior Ischemic Optic Neuropathy (rNAION)

Published on: November 20, 2016

Related Experiment Videos

Last Updated: Jun 6, 2026

Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo
08:17

Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo

Published on: September 22, 2017

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

The Rodent Model of Nonarteritic Anterior Ischemic Optic Neuropathy (rNAION)
06:49

The Rodent Model of Nonarteritic Anterior Ischemic Optic Neuropathy (rNAION)

Published on: November 20, 2016

Area of Science:

  • Ophthalmology
  • Neuro-ophthalmology

Background:

  • Unilateral nyctalopia can present diagnostic challenges.
  • Optic disc drusen are congenital abnormalities of the optic nerve head.

Observation:

  • A patient presented with unilateral nyctalopia (night blindness).
  • Comprehensive ophthalmological and neurological examinations were performed.

Findings:

  • Optic disc drusen were identified in the ipsilateral optic nerve head.
  • No other causative factors for nyctalopia were found despite extensive investigation.

Implications:

  • Optic disc drusen should be considered in the differential diagnosis of unilateral nyctalopia.
  • This case underscores the importance of thorough examination for subtle optic nerve head anomalies.