Decreased Vision and Junctional Scotoma from Pituicytoma

Decreased Vision and Junctional Scotoma from Pituicytoma

Pituicytomas are rare neoplasms of the sellar region. We report a case of vision loss and a junctional scotoma in a 43-year-old woman caused by compression of the optic chiasm by a pituitary tumor. The morphological and immunohistochemical characteristics of the tumor were consistent with the diagnosis of pituicytoma. The tumor was debulked surgically, and the patient's vision improved.

Compression of the prechiasmatic optic nerve produces a junctional scotoma.

PURPOSE To demonstrate the clinical-radiologic correlation between a junctional scotoma and a focal lesion compressing the prechiasmatic segment of the distal optic nerve. METHODS Case report involving a man with a pituitary adenoma. Clinical correlation was determined by reviewing visual field evaluations and magnetic resonance images. RESULTS The tumor compressed the prechiasmatic segment...

Augmented Vision for Central Scotoma and Peripheral Field Loss

Electronic aids for the visually impaired using head mounted display devices were proposed by many and a few attempts at implementation have even made it to the market. Existing products provided mostly magnification and standard video contrast control. These products had only limited success and are usually not recommended for use in mobility. Other prototype devices provided image enhancement...

Random Word Recognition Chart Helps Scotoma Assessment in Low Vision

PURPOSE To evaluate the use of SKread, a vision test based on random word sequences that prevents the prediction of upcoming words by linguistic criteria and is simple to score in a clinical setting. METHODS SKread combines the standardized format of the MNread test with sequences of random words and letters like the Pepper Visual Skills for Reading test. A total of 231 subjects (aged 16 to 9...

Leg weakness and decreased vision.