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Biomedical subjects

T J Carlow

Publications and source records attributed to T J Carlow.

29 records · Page 2Linked to original sources
PubMed1976

Color perimetry.

Seven subjects were studied to determine the reproducibility of color isopters utilizing a Tubingen perimeter with targets equated for radiant energy and separate for heterochromatic flicker luminance. Achromatic threshold recognition of targets for equal luminance gave smaller isopters with longer wavelengths (red). Color recognition thresholds, on the other hand, showed large blue, midzone red and green, and small yellow isopters. The target recognition and color recognition thresholds for equal energy targets gave smaller red isopters. The data support Traquair's contention that all color isopters would be equivalent if hue, saturation, and intensity were equated. Clinically, the detection of subtle peripheral and central field defects might reside in the use of appropriately selected equally bright-colored targets.

Color Perception↗
PubMed1976

Primary empty sella syndrome with visual field defects.

A patient with an enlarged, asymmetric sella turcica and visual field defects suggestive of a pituitary or parasellar tumor underwent extensive roentgenographic and pituitary function studies. No abnormalities in pituitary luteinizing hormone, follicle-stimulating hormone, thyroid-stimulating hormone, ACTH, prolactin or vasopressin secretion were detected. Growth hormone secretion was provoked by arginine infusion but not by hypoglycemia. Pneumoencephalography revealed air in the sella turcica, and no evidence of tumor. Thus, an enlarged sella turcica in a patient with visual field defects but normal pituitary function may suggest the presence of an "empty sella syndrome."

Humans↗
PubMedDate not supplied

Lymphocytaplasmapheresis in Devic's syndrome.

A pregnant 26-year-old woman with Devic's syndrome manifesting as paraplegia and visual loss was treated with multiple courses of lymphocytaplasmapheresis. Clinical improvement was temporally related to the lymphocytaplasmapheresis. She relapsed when treatment was stopped and improved with reinstitution of therapy. Thereafter, further treatments were not required and she delivered a normal infant.

Adult↗