ابحث
Retina
01
شبكية العين
(anatomy) the sensory membrane at the back of the eye that transmits light signals to the brain through optic nerves
What is "retina"?
The retina, located at the back of the eye, is a thin, light-sensitive layer that plays a crucial role in vision. It contains specialized cells called photoreceptors, including rods and cones, which convert light into electrical signals. These signals are then transmitted to the brain through the optic nerve, where they are processed and interpreted as visual information. The retina's intricate structure and arrangement of photoreceptor cells enable the perception of colors, shapes, and details, forming the foundation of visual perception. It acts as a vital sensory component, allowing us to see and perceive the world around us.
مثال
The lens of the eye focuses light onto the retina, enabling clear vision.
The eye doctor used an ophthalmoscope to check my retinas.
Mark's delicate eye surgery involved microsurgery to fix the retina.
The ocular nerve transmits visual information from the retina to the brain, allowing us to perceive the world around us.
