Searched for: in-biosketch:yes
person:carrr01
Birdshot retinochoroidopathy [Case Report]
Rosenberg, P R; Noble, K G; Walsh, J B; Carr, R E
PMID: 6609326
ISSN: 0161-6420
CID: 92126
RAPID VISUAL ASSESSMENT FROM THE EVOKED-POTENTIAL - AN ALTERNATIVE TO COMPUTER AVERAGING [Meeting Abstract]
KUPERSMITH, M; NELSON, J; SEIPLE, W; CARR, R
ISI:A1984TD11900061
ISSN: 0013-4694
CID: 40925
Retinitis pigmentosa: a psychophysical test of explanations for early foveal sensitivity loss
Greenstein, V C; Hood, D C; Siegel, I M; Carr, R E
A psychophysical procedure, the probe-flash paradigm, was used to test explanations of early foveal sensitivity loss in retinitis pigmentosa. The findings suggest that this loss may be due to a decreased responsiveness of retinal elements and not to a decrease in quantum catching ability of functioning photoreceptors
PMID: 6698727
ISSN: 0146-0404
CID: 92125
Spatiotemporal conditions which elicit or abolish the oblique effect in man: direct measurement with swept evoked potential
Nelson JI; Kupersmith MJ; Seiple WH; Weiss PA; Carr RE
Reversing sine wave gratings were electronically swept in spatial frequency and contrast. The acuity limits and contrast thresholds of 4 observers were inferred from evoked potential stimulus-response functions elicited by these stimuli and retrieved with a quadrature lock-in amplifier. The evoked potential functions, linearized in the case of contrast by increasing contrast logarithmically with time, were extrapolated to the point of zero response. This point provides an electrophysiologically defined threshold value for acuity and for contrast. An oblique effect (superior sensitivity for HV-oriented gratings) could reliably be demonstrated in both acuity and contrast threshold performance. This oblique effect could readily be abolished under low spatial/high temporal frequency conditions. The findings are discussed in terms of shifting relative strengths of X and Y contributions to the steady-state evoked potential
PMID: 6740979
ISSN: 0042-6989
CID: 65714
COMPARISONS AMONG SNELLEN, PSYCHOPHYSICAL AND EVOKED-POTENTIAL DETERMINATIONS OF VISUAL-ACUITY [Meeting Abstract]
WIENER, DE; WELLISH, KL; NELSON, JI; CARR, RE
ISI:A1984RZ82200340
ISSN: 0009-9279
CID: 40859
Electrophysiological confirmation of orientation-specific contrast losses in multiple sclerosis
Kupersmith MJ; Nelson JI; Seiple WH; Carr RE
PMID: 6598026
ISSN: 0077-8923
CID: 65715
OCULAR FINDINGS IN PATIENTS WITH ACQUIRED IMMUNE DEFICIENCY SYNDROME
Chapter by: FRIEDBERG, D; LEOPOLD, M; BROOKNER, A; ASBELL, R; CHARLES, N; LAUBENSTEIN, L; CARR, R
in: AIDS : the epidemic of Kaposi's sarcoma and opportunistic infections by Friedman-Kien, Alvin E; Laubenstein, Linda J [Eds]
New York : Masson Pub. USA, c1984
pp. 241-244
ISBN: 9780893522179
CID: 763552
Diabetic retinopathy. I. Nonproliferative retinopathy
Noble, K G; Carr, R E
PMID: 6657204
ISSN: 0161-6420
CID: 92124
The pattern electroretinogram in optic nerve disease
Seiple W; Price MJ; Kupersmith M; Siegel IM; Carr RE
Pattern evoked electroretinograms (PERG), diffuse flash electroretinograms (ERG) and visual evoked potentials were studied in patients with unilateral optic nerve disease. Patients with Snellen acuities of less than 6/30 did not have recordable PERGs in their affected eye, whereas their diffuse flash ERGs were normal. The VEPs were correspondingly reduced or absent when recorded from the poorer seeing eyes. A second group of patients with Snellen acuity between 6/6 and 6/30 in the involved eye showed reductions in the mean PERG amplitude of the affected as compared with the normal eyes. All affected eyes showed an abnormal contrast threshold measured with the PERG amplitude. Such results underscore the diagnostic value of the PERG in detecting even mildly affected cases of optic nerve disease
PMID: 6646652
ISSN: 0161-6420
CID: 65738
Pigmented paravenous chorioretinal atrophy
Noble, K G; Carr, R E
Six patients (three men and three women, ranging in age from 19 to 65 years) with pigmented paravenous chorioretinal atrophy, a rare disorder of unknown origin, were studied for three- to 21-year periods. The diagnosis was made on the basis of the distinctive fundus appearance of bilateral, symmetrical bone corpuscular pigment accumulation exclusively along the distribution of the retinal veins. Although the fundus abnormalities can be mild or severe, retinal function tests indicated that this is a geographic and not a generalized disorder. Central visual acuities were normal. Follow-up studies showed no evidence of ophthalmoscopic or functional deterioration in five of the patients. In the sixth (Patient 6, the most severely affected), there was a mild progression of the fundus abnormality during the 21-year follow-up period
PMID: 6614113
ISSN: 0002-9394
CID: 92123