Underwater vision
Underwater Vision
Underwater vision refers to the ability to see clearly under water. It is a crucial aspect of various aquatic activities such as scuba diving, snorkeling, and underwater photography.
Pronunciation
- /ˌʌndərˈwɔːtər ˈvɪʒən/
Etymology
The term "underwater vision" is derived from the words "underwater", meaning beneath the surface of the water, and "vision", which refers to the ability to see.
Physiology of Underwater Vision
Humans are not naturally adapted for underwater vision. When a human opens their eyes underwater, they see a blurry image. This is because water has a similar refractive index to the human eye, reducing the eye's ability to focus light. However, this can be corrected with the use of diving masks or contact lenses.
Related Terms
- Diving Mask: A device worn on the face to allow underwater divers to see clearly.
- Snorkeling: The practice of swimming on or through a body of water while equipped with a diving mask and a shaped tube called a snorkel.
- Scuba Diving: A mode of underwater diving where the diver uses a self-contained underwater breathing apparatus (scuba) to breathe underwater.
- Underwater Photography: The process of taking photographs while being under water. It is usually done while scuba diving, but can be done while snorkeling or swimming.
See Also
External links
- Medical encyclopedia article on Underwater vision
- Wikipedia's article - Underwater vision
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