Photopic vision

Photopic vision is the vision of the eye under well-lit conditions. In humans and many other animals, it allows color perception, mediated by cone cells, and a significantly higher resolution than scotopic vision, the vision in low-light conditions.

Physiology

Photopic vision allows for color perception and greater spatial acuity due to the presence of cone cells in the eye. These cells are concentrated in the fovea, the central pit of the retina, and are responsible for the eye's sensitivity to light.

The photopic vision response curve is known as the photopic curve, which is non-linear and peaks at around 555 nanometers, in the green region of the optical spectrum. This is also known as the luminous efficiency function or V(λ) function.

Comparison with other types of vision

Photopic vision is compared with scotopic vision, which is vision under low-light conditions and is mediated by rod cells. Scotopic vision does not allow for color perception and has a lower spatial acuity.

Another type of vision, mesopic vision, occurs in intermediate lighting conditions and involves a combination of cone and rod cells.

See also

• Color vision
• Visual perception
• Visual acuity
• Photoreceptor cell

References

Photopic vision Resources
Need Help Finding a Doctor? Need help finding a doctor or specialist anywhere in the world? Explore our world directory. WikiMD's DocFinder can assist you in locating millions of physicians.	Medical Knowledge Access the latest research - Most recent articles Ongoing trials.

Translate to: East Asian 中文, 日本, 한국어, South Asian हिन्दी, Urdu, বাংলা, తెలుగు, தமிழ், ಕನ್ನಡ,
Southeast Asian Indonesian, Vietnamese, Thai, မြန်မာဘာသာ, European español, Deutsch, français, русский, português do Brasil, Italian, polski