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Thomas-Michael Wohlrab

Publications and source records attributed to Thomas-Michael Wohlrab.

2 recordsLinked to original sources
PubMed2002

Surgical decompression in traumatic optic neuropathy.

BACKGROUND: The management of traumatic optic neuropathy remains controversial. This retrospective study presents the results of 19 cases of indirect optic neuropathy where surgical decompression represented the primary mode of treatment. METHODS: Nineteen patients (20 optic nerves) with traumatic optic neuropathy underwent primary surgical decompression. The surgery was performed using the transethmoidal technique. RESULTS: The extent of bony optic canal injury documented during surgery indicated that this had been underestimated in this series by CT findings. Vision improved in eight patients, five of whom had had no light perception preoperatively. CONCLUSION: Primary surgical decompression of the optic nerve within 48 h of injury produces beneficial results. Testing of visual acuity 6 weeks after surgery does not serve as a reliable predictor of final outcome.

Adolescent↗
PubMedDate not supplied

Age-corrected normal values for perimetry.

PURPOSE: Age-corrected values are indispensable in assessing discrete changes in light difference sensitivity (LDS) when evaluating perimetric results. In order to detect incipient visual field defects, the present study aimed particularly to determine function of normal values depending on age and eccentricity. METHODS: A test group (n = 83) of ophthalmologically and clinically unremarkable subjects 18-74 years of age was examined with the 'Centerfield' perimeter. A brief introductory program was first used to familiarize each test person with the situation. Then values in the central visual field (30 degrees) were determined with a threshold-splitting program. In addition, the peripheral visual field was examined after a short break. RESULTS: Age-related normal values were calculated both as group averages and as lines of regression by statistical analysis of the resulting data. In contrast to other perimetric studies, decreases in LDS at different test points for persons aged 20 years to persons over 60 were not linear. CONCLUSIONS: Age-related normal values should be reviewed for other perimeters.

Adolescent↗