Sjónhimnur

Sjónhimnur refers to the retinas of the eyes in Icelandic. The retina is a light-sensitive layer of tissue lining the back of the eye. It contains specialized cells called photoreceptors, which are rods and cones. Rods are responsible for vision in low light conditions and detecting motion, while cones are responsible for color vision and sharp detail in bright light. When light enters the eye and strikes the retina, these photoreceptor cells convert the light into electrical signals. These signals are then processed by other nerve cells in the retina before being transmitted to the brain via the optic nerve. The brain interprets these signals as images, allowing us to see. Damage or disease affecting the sjónhimnur can lead to various visual impairments, including blindness. Common conditions that affect the retina include macular degeneration, diabetic retinopathy, and retinal detachment. Regular eye examinations are important for detecting and managing potential issues with the sjónhimnur.