Binocular vision is the simultaneous use of both eyes to gain visual information about the environment. It is the basis of depth perception, which allows us to perceive the world in three dimensions. Binocular vision also allows us to accurately judge distances, and to accurately track moving objects with our eyes. By combining the images …
Rhodopsin is a light-sensitive pigment that is found in the rods of the retina. It is composed of an organic molecule called retinal that is covalently bonded to the protein opsin. Rhodopsin is activated when light of a specific wavelength hits it, causing a conformational change in the molecule which triggers a photochemical reaction. This …
Cone cells are photoreceptor cells in the retina of the human eye. They are responsible for color vision and for the detection of fine detail in brightly lit settings. Cone cells come in three varieties, each of which is sensitive to a different colour of light. They are the red, green, and blue cone cells, …
Rod cells are one of two types of photoreceptors in the retina of the eye. They are responsible for scotopic vision, the ability to see in dim light. Rod cells are very sensitive and can detect even the smallest amounts of light. They are insensitive to differences in colour, and are not able to distinguish …
The retina is a light-sensitive tissue located at the back of the eye. It is composed of two types of photoreceptor cells, rods and cones, which convert light into electrical signals that are sent to the brain. Photoreceptors are specialized cells found in the eyes that are responsible for converting light into electrical signals that …
Retina and the photoreceptors – റെറ്റിനയും ഫോട്ടോറിസെപ്റ്ററുകളും Read More »
What are the peculiarities of the image formed by lens of the eye? The image formed by the lens of the eye is inverted and reversed. The image formed by the lens of the eye is focused on the retina at the back of the eye, rather than directly onto the lens itself. The image …
The formation of an image in the eye is known as retinal imaging. Light passes through the cornea and the lens of the eye and is focused onto the retina, which is a light-sensitive layer of tissue at the back of the eye. The retina contains photoreceptors, which convert the light into electrical signals that …
The regulation of light in the eye is accomplished through a combination of physical and chemical processes. The pupil of the eye is responsible for regulating the amount of light entering the eye. The pupil is a small opening in the centre of the iris, and it gets larger (dilates) or smaller (constricts) depending on …
Regulation of light in the eye – കണ്ണിലെ പ്രകാശത്തിന്റെ നിയന്ത്രണം Read More »
Aqueous humor is a clear, watery fluid that circulates in the front portion of the eye between the cornea and the lens. It helps to nourish and maintain the health of the cornea and lens and is also responsible for helping to maintain the intraocular pressure (IOP) within the eye. Aqueous humor is produced by …
Vitreous humor is the clear, gel-like substance that fills the space between the lens and the retina of the eye. It helps to maintain the shape of the eye and gives it a round shape. It also helps to focus light that enters the eye onto the retina. The vitreous humor is mostly composed of …