Correlation between Automated Perimetry and Magnetic Resonance Imaging (MRI) in Neuro-Ophthalmic Disorders (Supratentorial Space Occupying Lesions)
Journal Title: International Journal of Contemporary Medical Research - Year 2017, Vol 4, Issue 7
Abstract
Introduction: Space occupying lesions of the brain manifest usually with visual field defects with impairment of vision and papilloedema. Defects in the Visual field provide requisite information for locating the anatomical site and progression of supratentorial space occupying lesions (SOL) affecting visual pathway. Clinical correlation between automated perimetry and Magnetic resonance imaging (MRI) is vital for anticipation and management of these patients. Material and Methods: This comparative prospective study was carried out on 50 patients with supratentorial SOLs in tertiary care hospital. Visual fields were performed on Humphrey’s automated perimeter using 30-2 SITA standard strategy which were again repeated at 6 and 12 months after completing treatment. Correlation of visual fields with MRI was done to diagnose and localize the lesion. Results: Homonymous hemianopia was seen in 30% of patients followed by bitemporal hemianopia in 24% of patients. 54.54% patients with chiasmal lesions showed bitemporal hemianopia. Most patients were having pituitary adenoma. Central/paracentral scotomas were found in 15.9%, concentric field contraction in 10% and quadrantanopia was observed in 8% patients. Normal fields were present in 12% of patients. Perimetry could correlate location of lesions in 31 (62%) patients as compared to MRI 50 patients (100%). Out of 20 patients of chiasmal SOLs, 5 patients showed normal visual fields and out of remaining 15 patients, 11 (73.33%) patients showed improvement in visual field after treatment. Conclusions: Automated perimetry is an excellent tool for early diagnosis of patients with supratentorial SOLs. The correlation of field defects and MRI is helpful in management and follow-up of patients affecting visual pathway.
Authors and Affiliations
Seema Mane, Avinash Ingole, Nikunj Patel, Aditi Agarwal, Swapnil Rathod
Keywords
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