Using an experimental technique called "Oz," researchers stimulated the human retina such that people saw a brand-new color.

Scientists have come up with scenarios through which the first eye-like structure, a light-sensitive pigmented spot on the skin, could have gone through changes and complexities to form the human ...

As the sun’s light, which appears pure white, passes through a prism, the light refracts and creates a stunning flash that is visible to the human eye ... the atmospheric refraction of light ...

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens.

Bhopal (Madhya Pradesh): The All India Institutes of Medical Science’s department of ophthalmology has introduced two new refraction units in the eye OPD. Eye tests become more accessible and ...