fovea centralis
The inner rear surface of the eye which contains photoreceptors it called the retina.
The retina is the sensitive surface of the eye that acts like the film in a camera. It contains specialized cells called photoreceptors that convert light into electrical signals, which are then transmitted to the brain for visual processing.
a flat, colored, ring-shaped membrane of the eye is called the iris
Is called real image. The image formed on the retina as a result of the refractory activity of the lens is a real image (reversed from left to right, inverted, and smaller than the object)
The retina has two types of cells used in vision, rodsand cones. Cones, concentrated in the center of the retina, serve both color vision and the highest visual acuity. Rods, concentrated away from the center -- at the "sides," as you phrased it -- are responsible for night vision, for our most sensitive motion detection, and for our peripheral vision (vision of objects to the side, away from the center). Paradoxically, your night-vision is enhanced it you do not look directly at objects that are in relative darkness. If you drive at night on poorly lighted roads, for example, you can enhance your night-vision of passing cars and of the sides of the road by looking straight ahead: the rods will detect motion, objects on the periphery (the sides), and objects in relative darkness. If you were to look directly at objects in darkness, you would be stimulating the cones, in the center of the retina, and your night-vision would be less effective.
Looking directly at the sun can damage the retina at the back of the eye. The intense light can cause a condition called solar retinopathy, where the cells in the retina are affected leading to vision problems. It is important to avoid looking directly at the sun to prevent eye damage.
It can if you are looking directly at it when it explodes, the UV light burns the retina.
When you're looking at a near object, the light rays converge at a point behind the retina so the focal length of your eye increases so that the parallel rays of light converge on the back of the retina. Therefore, if you're looking from a near object to a far object, the focal length of your eye should decrease back to its normal, relaxed size.
When looking at a distant object, the ciliary muscles in the eye relax, causing the lens to flatten. This allows the light rays from the distant object to focus directly on the retina at the back of the eye, creating a clear image.
Looking directly at the sun can cause damage to your eyes, including potentially permanent damage to the retina or a condition called solar retinopathy. It is important to use caution and avoid looking directly at the sun, especially when observing shadows.
the iris and the lens focus the image to fall on the RETINA.
The image of an object formed on the retina of the human eye is called Image Formation. Image Formation is the natural processing of light through the eye.
Lens
The image of a distant object is brought into focus in front of a person's retina, the defect is called nearsightedness. A virtual image produced by a lens is always located in front of the lens.
The increase in the size of an object on the retina is perceived by the brain based on the degree of visual angle subtended by the object. The visual angle is larger when the object is closer to the observer, resulting in a larger image on the retina, which the brain interprets as a larger object.
In a far-sighted person, the light from a nearby object focuses behind the retina instead of directly on it, resulting in blurry vision. This condition, known as hyperopia, can be corrected with eyeglasses or contact lenses that help bring the image into focus on the retina.
Looking into a bright light can harm your eyes by causing temporary or permanent damage to the retina. It is important to avoid looking directly at bright lights to protect your vision.