PURPOSE: To study early visual restoration following surgical removal of pituitary adenomas compressing the optic chiasm. METHODS: Eleven patients were examined with high-pass resolution perimetry (HRP) before and after trans-sphenoidal adenomectomy. Visual fields were examined on the second postoperative day. The result was interpreted in terms of the estimated fraction of functioning retino-cortical connections. RESULTS: In the upper and lower temporal visual field quadrants, the mean increases in the fraction of functioning neural channels were 19% (p < 0.001) and 17% (p = 0.001), respectively, on day 2 after surgery. These increased to 35% on day 12. The nasal hemifield showed no change on day 2, but functioning neural channels had increased by 15% on day 5 (p = 0.017). Mean visual acuity improved from 0.6 preoperatively to 1.0 on day 2 (p = 0.030) but did not change significantly thereafter. CONCLUSION: All visual field sectors and visual acuity improved after surgery. Improvement starting in the temporal hemifield was already evident on the second postoperative day.
PURPOSE: To study early visual restoration following surgical removal of pituitary adenomas compressing the optic chiasm. METHODS: Eleven patients were examined with high-pass resolution perimetry (HRP) before and after trans-sphenoidal adenomectomy. Visual fields were examined on the second postoperative day. The result was interpreted in terms of the estimated fraction of functioning retino-cortical connections. RESULTS: In the upper and lower temporal visual field quadrants, the mean increases in the fraction of functioning neural channels were 19% (p < 0.001) and 17% (p = 0.001), respectively, on day 2 after surgery. These increased to 35% on day 12. The nasal hemifield showed no change on day 2, but functioning neural channels had increased by 15% on day 5 (p = 0.017). Mean visual acuity improved from 0.6 preoperatively to 1.0 on day 2 (p = 0.030) but did not change significantly thereafter. CONCLUSION: All visual field sectors and visual acuity improved after surgery. Improvement starting in the temporal hemifield was already evident on the second postoperative day.
Authors: O M Dekkers; R J W de Keizer; F Roelfsema; A A Vd Klaauw; P J Honkoop; H van Dulken; J W A Smit; J A Romijn; A M Pereira Journal: Pituitary Date: 2007 Impact factor: 4.107
Authors: Sarah E Nicholas; Roberto Salvatori; Alfredo Quinones-Hinojosa; Kristin Redmond; Gary Gallia; Michael Lim; Daniele Rigamonti; Henry Brem; Lawrence Kleinberg Journal: Front Oncol Date: 2019-01-10 Impact factor: 6.244
Authors: Tomáš Česák; Pavel Póczoš; Jaroslav Adamkov; Petr Čelakovský; Filip Gabalec; Jiří Soukup; Radka Dvořáková; Petr Krůpa Journal: Croat Med J Date: 2020-10-31 Impact factor: 1.351