Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Open Angle Glaucoma: Treatment

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: Treatment

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...

Focusing of Light in the Eye

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...

You might also read

Related Articles

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

Sort by

Same author

Associations Among the Gradient Refractive Index of the Lens, Axial Length, and Refractive State in the Developing Murine Eye.

Investigative ophthalmology & visual science·2026

Same author

Lens shape change is influenced by zonular anchorage and stretching mechanism.

Experimental eye research·2026

Same author

Roadmap on advances in visual and physiological optics.

Journal of optics (2010)·2025

Same author

Refractive index gradient in the lens: reflections on form and function and on the lens paradox.

Frontiers in ophthalmology·2025

Same author

Ocular fundus and optical coherence tomography (OCT) findings in children prenatally exposed to opioid maintenance therapy (OMT).

BMC ophthalmology·2025

Same author

Investigating the effect of capsular thickness and material properties on biomechanical and optical parameters in eye models.

Experimental eye research·2025

Search research articles

Related Experiment Video

Updated: Jul 12, 2026

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects

Published on: August 14, 2013

Hypermetropia-succeeded myopia after hyperbaric oxygen therapy.

Knut Evanger¹, Olav H Haugen, Leif Aanderud

¹Department of Hyperbaric Medicine, Haukeland University Hospital, Haukeland, Norway. knut.evanger@essilor.no

Optometry and Vision Science : Official Publication of the American Academy of Optometry

|March 15, 2006

Summary

Hyperbaric oxygen therapy can cause temporary vision changes, including shifts in refractive error. This case study details a patient experiencing myopic and hypermetropic shifts during treatment, with eventual stabilization.

More Related Videos

Press Needle: A Traditional Chinese Medicine Therapy for Myopia Patients with Dry Eye

Press Needle: A Traditional Chinese Medicine Therapy for Myopia Patients with Dry Eye

Published on: April 12, 2024

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Related Experiment Videos

Last Updated: Jul 12, 2026

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects

A Laser-induced Mouse Model of Chronic Ocular Hypertension to Characterize Visual Defects

Published on: August 14, 2013

Press Needle: A Traditional Chinese Medicine Therapy for Myopia Patients with Dry Eye

Press Needle: A Traditional Chinese Medicine Therapy for Myopia Patients with Dry Eye

Published on: April 12, 2024

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Area of Science:

Ophthalmology
Hyperbaric Medicine
Physiological Optics

Background:

Hyperbaric oxygen (HBO) therapy is used for various medical conditions.
Changes in visual function have been anecdotally reported during HBO treatment.
Understanding refractive changes associated with HBO is crucial for patient management.

Observation:

A 58-year-old male patient undergoing HBO therapy reported altered vision.
The patient experienced sequential myopic and then hypermetropic shifts in both eyes.
These refractive changes occurred after each of two HBO treatment series.

Findings:

The patient exhibited a maximal refractive amplitude of 3.00 D in the right eye and 2.75 D in the left eye.
Refractive errors ranged from -1.37 D to +1.62 D (right eye) and -1.25 D to +1.50 D (left eye).
Visual refraction stabilized approximately 1.5 years post-treatment, returning to near pre-treatment levels.

Implications:

The observed refractive shifts may be linked to structural alterations within the eye's lens.
HBO therapy can induce transient refractive changes, necessitating careful ophthalmological monitoring.
Further research is needed to elucidate the precise mechanisms of HBO-induced visual changes.