Pupillary Reflex The adaptation of the pupil to the prevailing light situation is achieved by the so-called pupillary reflex. A distinction is made between the part that receives the information about the exposure and transmits it to the central nervous system (afference) and the part that, after processing this information, leads to the activation of … Pupillary Reflex | Pupil
What can dilated pupils indicate? In darkness, the pupils are dilated to allow as much light as possible to enter the eye. The so-called sympathetic nervous system dilates the pupils. It is particularly active during stress reactions and also increases pulse and blood pressure, for example. In stressful situations, the pupils can dilate accordingly. A … What can dilated pupils indicate? | Pupil
What does “isokor” mean at the pupil? Pupils are called isocor if their diameter is about the same on both sides. Slight side differences of up to one millimeter are still called isocor.Larger differences are no longer isocor, such a state is called anisocor. Since anisocor is an important symptom in a number of diseases, … What does “isokor” mean at the pupil? | Pupil
What is Chiasma Syndrome? Chiasma syndrome consists of three components and occurs when the intersection of the visual pathways along the midline is damaged. This results in a conduction disorder of the central parts of the retina and the field of vision of the outer sides of both eyes is no longer perceived. In addition, … What is Chiasma Syndrome? | Visual path
Introduction The visual pathway is a part of the brain, because all its components originate there, including the optic nerve. The visual pathway begins at the retina, whose ganglion cells are the starting point, and ends in the visual cortex in the cerebrum. Its complex structure enables us to see. Anatomy of the visual path … Visual path
Course of the visual path The visual pathway extends from the retina of the eye to various areas of the brain. The most distant area of the brain is located at the back wall of the skull and thus at the head on the opposite side of the eyes. The beginning of the visual path … Course of the visual path | Visual path
Insertion of the visual field The retinal sections reflect the visual fields in opposite arrangement. The right part of the visual field of each eye is recorded on the left side of the retina. The left halves of the visual fields are accordingly imaged on the right part of the retina.The right and left tractus … Insertion of the visual field | Visual path
Synonyms in a broader sense Medical: Corpus vitreum Definition The vitreous body is a part of the eye. It fills a large part of the posterior chamber of the eye and is primarily responsible for maintaining the shape of the eyeball (bulbus oculi). Changes to the vitreous body can lead to visual disturbances in the … Glass body
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?
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
