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
The optic nerve is formed by approximately one million nerve fibers. These nerve fibers are grouped into bundles and meet about 10 to 15 millimeters behind the eyeball with the central artery of the retina and the vein. Together, the vessels then move forward in the interior of the nerves to the optic nerve head … Causes of optic atrophy
Introduction Nearly everyone can recognize small black dots, fluff or threads when they look at a white wall, the sky or white paper, which other people present cannot see. These spots in the field of vision move flittingly together with the line of sight. They are called “flying mosquitoes” (Mouches volantes). They are caused by … Vitreous body turbidity
Synonyms Red eye in the broadest sense: conjunctivitis, conjunctivitis Definition reddened eyes Red eyes is the leading symptom of conjunctivitis. However, the red eye can also occur in many other eye diseases. The conjunctiva is the primarily affected structure of the eye. It usually appears whitish. Red eyes rarely occur as the sole symptom. In … Red eyes
Synonyms Medical: Intravitreal bleeding Definition vitreous hemorrhage A vitreous hemorrhage is the penetration of blood into the vitreous cavity of the eye. This is located behind the lens of the eye. Depending on the amount of blood entering during a vitreous hemorrhage, it can cause varying degrees of symptoms. At the beginning, the patient notices … Vitreous hemorrhage
Synonyms (Opticus = optic nerve; atrophy = decrease in cell size, decrease in cell count) Death of the optic nerve, optic nerve atrophy Definition Optic atrophy Optic atrophy is the loss of nerve cells in the optic nerve. The nerve cells either decrease in size or in number. Both are possible. Atrophy can have various … Optic atrophy
Synonyms tumor of the eyelids, eye tumor, cancer, eye cancer Definition Eyelid tumors are tumors of the eyelids. They can be both benign and malignant. Benign tumors include benign tumors Malignant tumors include Warts or also Fat deposits (xanthelasma) Blood sponges (hemangiomas). Basaliomas Melanomas General information The malignant eyelid tumor that occurs most frequently (approx. … Eyelid tumor
English: autologous eyedrops Synonyms Eye drops from own blood Definition The so-called autologous serum eye drops are eye drops that are obtained from the patient’s own blood. This type of treatment is used for a wide variety of diseases affecting the cornea of the eye. They can be used for dry eyes (sicca syndrome), corneal … Autologous serum eye drops