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Retinoblastoma (Rb) is a rare form of cancer that rapidly develops from the immature cells of a retina, [2] the light-detecting tissue of the eye. [3] It is the most common primary malignant intraocular cancer in children, especially those under 3 years old.
Melanomas (choroidal, ciliary body and uveal) - In the early stages there may be no symptoms (the person does not know there is a tumor until an ophthalmologist or optometrist looks into the eye with an ophthalmoscope during a routine test). As the tumor grows, symptoms can be blurred vision, decreased vision, double vision, eventual vision ...
The initial retinal degenerative symptoms of retinitis pigmentosa are characterized by decreased night vision and the loss of the mid-peripheral visual field. [4] The rod photoreceptor cells, which are responsible for low-light vision and are orientated mainly in the retinal periphery, are the retinal processes affected first during non ...
Treatment: Contact your doctor immediately if you experience these symptoms. Typically, they will recommend that you stop taking the medication immediately, and they may prescribe an anti ...
Coats' usually affects only one eye (unilateral) and occurs predominantly in young males 1/100,000, with the onset of symptoms generally appearing in the first decade of life. Peak age of onset is between 6–8 years of age, but onset can range from 5 months to 71 years. [2] [3] Coats' disease results in a gradual loss of vision.
Trilateral retinoblastoma (TRb) is a malignant midline primitive neuroectodermal tumor occurring in patients with inherited uni- or bilateral retinoblastoma.In most cases trilateral retinoblastoma presents itself as pineoblastoma (pineal TRb).
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Many types of blastoma have been linked to a mutation in tumor suppressor genes. For example, pleuropulmonary blastomas have been linked to a coding mutation for p53.However, the mutation which allows proliferation of incompletely differentiated cells can vary from patient to patient and can alter the prognosis.