monokulaarisessa

Monokulaarisessa refers to something that is viewed or perceived with only one eye. This term originates from the Greek words "monos" meaning single and "oculus" meaning eye. In the context of vision, monokulaarinen näkö (monocular vision) describes the ability of an organism to see using a single eye. This is in contrast to binocular vision, where both eyes are used simultaneously.

Many animals possess monocular vision, including prey animals like rabbits and horses, which have eyes on the sides of their heads. This allows for a wider field of view, enabling them to detect predators approaching from various directions. However, monocular vision typically results in a reduced sense of depth perception compared to binocular vision. The brain struggles to triangulate distances without the overlapping visual fields provided by two eyes.

In humans, monocular vision can occur temporarily if one eye is closed or covered, or it can be a permanent condition due to injury, disease, or congenital absence of an eye. While humans primarily rely on binocular vision for tasks requiring fine depth perception, such as driving or catching a ball, individuals with monocular vision can adapt and learn to compensate for the lack of binocular depth cues. They may develop enhanced reliance on other visual cues, such as relative size, interposition, and atmospheric perspective, as well as non-visual cues like touch and sound.