Synonyms Medical: Macula Lutea (Latin) Structure The yellow spot has a size of about 5mm and can be further distinguished into visual fossa (lat. Fovea Centralis), parafovea (para = next to, adjacent) and perifovea (peri = around something). The visual fossa, which is located in the middle of the yellow spot, is the place of … Yellow spot
What is the difference between the yellow spot and the blind spot? The yellow spot is the point of sharpest vision, since it is here that the highest density of color-sensitive light receptors on the retina is found. It lies exactly in the visual axis. An image that is located in the center of the … What is the difference between the yellow spot and the blind spot? | Yellow spot
Who discovered the yellow spot? The yellow spot was discovered by Samuel Thomas von Soemmering, a German anatomist. All articles in this series: Yellow spot What is the difference between the yellow spot and the blind spot? Who discovered the yellow spot?
Rods are the retinal photoreceptors responsible for light-sensitive monochromatic night vision and peripheral vision. The main concentration of rods is outside the yellow spot (fovea centralis) located centrally on the retina, which is mainly populated with three different types of cones for color and sharp vision during the day and in bright twilight. What are … Rods: Structure, Function & Diseases
Can you see without a lens? The main task of the lens is to adjust the refractive power of the eye. By deforming the lens it is possible to fix individual objects precisely. However, the lens is not the only part of the eye that can bundle incident light rays. It is not the lens … Can you see without a lens? | Lens of the eye
Synonyms Lens oculi Introduction The lens is a part of the ocular apparatus, is located behind the pupil and, together with other structures, is responsible for the refraction of the incoming light beam. It is elastic and can be actively curved by muscles. This allows the refractive power to be adjusted to different requirements. With … Lens of the eye
Physiology The lens of the eye is suspended via fibers (zonula fibers) in the so-called ciliary body of the eye. The ciliary body contains the ciliary muscle. It is a ring-shaped muscle that contracts when tensed. When the muscle is tensed, the zonula fibers relax and the lens becomes rounder thanks to its inherent elasticity. … Physiology | Lens of the eye
What is lens opacity? The clouding of the lens is also called cataract. In Germany, the absolutely most common form is age-related lens clouding. Due to a number of factors, such as injuries, diabetes, radiation and mostly age, clouding of the lens occurs. As a result, vision is significantly reduced. Those affected describe the symptoms … What is lens opacity? | Lens of the eye
Eye movement serves all aspects of vision and is also partially controlled by reflexes triggered by self-motion, such as detecting and tracking an object. In this process, the image is placed and held in the center of the yellow spot, which is the fovea. As soon as an object moves, subsequent movements of the eye … Eye Follow Movement: Function, Task & Diseases
Electroretinogram represents the result of a performed electroretinography, a special functional examination of the retina of the eye. The purpose of the measurement is to check the functionality of the light sensory cells of the retina (cones and rods). The electrical impulses generated by the rods and cones in response to given light stimuli are … Electroretinogram: Treatment, Effect & Risks
Synonyms English: blind spot Introduction A blind spot is the area of the eye that does not contain any sensory cells that can receive light, so that a certain area cannot be seen. The blind spot occurs naturally in both eyes. To test your blind spot Anyone can easily experience the position and effects of … Test your blind spot
Explanation of the blind spot There are no visual cells at the blind spot, so the brain actually lacks any image information at this point. You may have noticed that the blind spot is not perceived as completely empty or black. Instead, the brain uses the information from the surrounding visual cells to compensate for … Explanation of the blind spot | Test your blind spot
