What is the retina of the eye? The retina is a nerve tissue and the innermost of the three wall layers of the eyeball. It extends from the edge of the pupil to the exit point of the optic nerve. Its task is to perceive light: the retina registers the optical light impulses that enter … Eye Retina (Retina)
The best-known form of scanning laser polarimetry is GDx scanning laser polarimetry, which is used in ophthalmology to diagnose and monitor cataracts and allows this disease to be diagnosed up to five years earlier than any previous measurement method. Polarimetry makes use of the polarization property of light by means of a laser scanner and … Scanning Laser Polarimetry: Treatment, Effect & Risks
Laser coagulation is a common treatment method in ophthalmology. It is used for various diseases of the retina and can reliably prevent them from progressing. What is laser coagulation? Schematic diagram for LASIK eye surgery. Click to enlarge. The term laser coagulation is used by medical professionals to describe a therapeutic method used in ophthalmology … Laser Coagulation: Treatment, Effects & Risks
Secondary directions are always oriented to a main direction (fixation). They differ from each other by respectively different spatial values and are significant for the emergence of the spatial sense. A rearrangement of the secondary directions always causes a change in the perception in space. What is the secondary direction? A secondary sense of direction … Secondary Direction: Function, Tasks, Role & Diseases
Coats disease is a congenital eye disorder caused by a genetic defect. Coats disease leads to complete blindness and has limited curative treatment options. What is Coats disease? Coats disease is a rare congenital eye disorder that affects boys far more often than girls. The blood vessels of the retina are dilated and permeable, allowing … Coats Disease: Causes, Symptoms & Treatment
By the Troxler effect, medicine understands the local adaptation of the human eye. Light stimuli that remain permanently constant are perceived by the retina but do not reach the brain. In everyday life, the eye’s micromovements permanently shift the light on the retina to enable perception. What is the Troxler effect? With the Troxler effect, … Troxler Effect: Function, Tasks, Role & Diseases
Optical coherence tomography (OCT) as a noninvasive imaging method is mainly used in medicine. Here, the different reflection and scattering properties of different tissues form the basis of this method. As a relatively new method, OCT is currently establishing itself in more and more fields of application. What is optical coherence tomography? In the field … Optical Coherence Tomography: Treatment, Effects & Risks
Synonyms retinal tumor What is a retinoblastoma? A retinoblastoma is a tumor of the retina (at the back of the eye). This tumor is genetic, i.e. hereditary. It usually occurs in childhood and is malignant. How common is retinoblastoma? Retinoblastoma is a congenital tumor or it develops in early childhood. It is the most common … Retinoblastoma
How is a retinoblastoma inherited? There are two different types of retinoblastoma. On the one hand the sporadic (occasionally occurring) retinoblastoma, which occurs in 40% of cases. This leads to different changes (mutations) in the affected gene and finally to the formation of a retinoblastoma. This usually occurs only on one side and is not … How is a retinoblastoma inherited? | Retinoblastoma
Definition For many, the frightening diagnosis of stroke in the head is well known. But many people do not know that a stroke in the eye can also occur. A stroke in the eye is the sudden closure of a vein in the eye. It is called retinal vein occlusion. Both older and younger people … Stroke in the eye
Symptoms The stroke in the eye often sets in very suddenly and patients usually do not notice the process at first. The vein is closed without pain. Then suddenly various visual disturbances can occur after a stroke. The field of vision can be restricted, so that some areas become blurred or even not perceived at … Symptoms | Stroke in the eye
Vein in the eye burst – Is it a stroke? If you notice little veins in your eye that have burst when you look in the mirror, this is no cause for concern at first. There are many different causes that can lead to this phenomenon. These include mechanical irritation caused by frequent rubbing or … Vein in the eye burst – Is it a stroke? | Stroke in the eye
