Related Experiment Video
Updated: Jul 28, 2025
07:20
Inducement and Evaluation of a Murine Model of Experimental Myopia
Published on: January 22, 2019
9.9K
[Research updates on a role for retinal contrast in myopia control]
Summary
Mild reductions in retinal contrast may slow myopia progression in children. This finding integrates animal research with clinical trials of optical myopia treatments, suggesting a role for contrast manipulation in therapy.
Area of Science:
- Ophthalmology and Vision Science
- Animal Models of Refractive Development
- Clinical Myopia Research
Background:
- Refractive development is influenced by visual signals like contrast and defocus.
- Animal studies show concurrent effects of these signals on eye growth.
- Genetic factors, such as L/M opsin mutations, are linked to high myopia.
Approach:
- Reviewing clinical trial data of optical myopia treatments.
- Analyzing strategies that manipulate retinal contrast.
- Integrating findings with outcomes from animal research.
Key Points:
- Form deprivation can cause axial hyperopia under specific lighting.
- Diffusion optics technology lenses reduce retinal contrast and control myopia.
- Current defocus-based treatments also reduce image contrast.
- L/M opsin mutations are associated with familial high myopia.
Conclusions:
- Mild reductions in retinal contrast show potential for slowing myopia progression in children.
- Contrast manipulation may be a valuable component of defocus-based optical therapies for myopia.
- Further research integrating animal and clinical findings is warranted.
More Related Videos
Related Concept Videos
01:16Focusing of Light in the Eye
3.0K
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...
3.0K
01:20Anatomy of the Eyeball
7.2K
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...
7.2K
01:27Open Angle Glaucoma: Treatment
497
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...
Drugs such as carbonic anhydrase inhibitors, α2- and...
497
01:28Angle Closure Glaucoma: Treatment
584
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...
584