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Related Concept Videos

Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Muscles of the Eye01:20

Muscles of the Eye

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 rotating...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

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...
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,...
Focusing of Light in the Eye01:16

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...
Microbiome of the Eye01:22

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...

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Related Experiment Video

Updated: May 13, 2026

Eye Movement Monitoring of Memory
08:06

Eye Movement Monitoring of Memory

Published on: August 16, 2010

An eye for discovery.

Andreas Stahl1, Lois E H Smith

  • 1Department of Ophthalmology, Children’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.

The Journal of Clinical Investigation
|September 3, 2010
PubMed
Summary
This summary is machine-generated.

Vision research drives biological understanding and clinical breakthroughs in ophthalmology. Key advancements include anti-VEGF therapy and RPE65 gene therapy for vision restoration.

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Area of Science:

  • Ophthalmology and medical research
  • Translational science in vision research

Background:

  • Vision research significantly advances biological understanding.
  • The eye is a model for translating basic science into clinical therapies.
  • Milestones in ophthalmology include anti-VEGF therapy and gene therapy.

Discussion:

  • Anti-VEGF therapy for age-related macular degeneration was a top science advancement in 2006.
  • RPE65 gene therapy for Leber congenital amaurosis demonstrated gene therapy's clinical potential in 2008.
  • These successes highlight the impact of vision research on medical progress.

Key Insights:

  • Vision research yields significant biological insights.
  • Translational success in ophthalmology offers breakthrough therapies.
  • Gene therapy and anti-VEGF treatments exemplify clinical translation.

Outlook:

  • Continued developments in vision research are crucial for ophthalmology.
  • Vision science remains vital for broader medical advancements.
  • Future research promises further innovations in eye care and treatment.