Morsy, M., Elhennawi, H., Abouhussein, M., Youssef Nashed, M. (2023). COMPARISON BETWEEN LOW-VISION PROGRAM AND CONVENTIONAL PERIMETRY IN ADVANCED GLAUCOMA. ALEXMED ePosters, 5(2), 8-9. doi: 10.21608/alexpo.2023.206600.1603
Mohamed Saad Morsy; Hazem Medhat Elhennawi; Mahmoud Alaa Abouhussein; Marina Nagy Youssef Nashed. "COMPARISON BETWEEN LOW-VISION PROGRAM AND CONVENTIONAL PERIMETRY IN ADVANCED GLAUCOMA". ALEXMED ePosters, 5, 2, 2023, 8-9. doi: 10.21608/alexpo.2023.206600.1603
Morsy, M., Elhennawi, H., Abouhussein, M., Youssef Nashed, M. (2023). 'COMPARISON BETWEEN LOW-VISION PROGRAM AND CONVENTIONAL PERIMETRY IN ADVANCED GLAUCOMA', ALEXMED ePosters, 5(2), pp. 8-9. doi: 10.21608/alexpo.2023.206600.1603
Morsy, M., Elhennawi, H., Abouhussein, M., Youssef Nashed, M. COMPARISON BETWEEN LOW-VISION PROGRAM AND CONVENTIONAL PERIMETRY IN ADVANCED GLAUCOMA. ALEXMED ePosters, 2023; 5(2): 8-9. doi: 10.21608/alexpo.2023.206600.1603
COMPARISON BETWEEN LOW-VISION PROGRAM AND CONVENTIONAL PERIMETRY IN ADVANCED GLAUCOMA
1Department of Ophthalmology, Faculty of Medicine, Alexandria University
2Department of ophthalmology, Faculty of Medicine, University of Alexandria
Abstract
INTRODUCTION Visual field testing is important for the diagnosis of glaucoma and even more important for follow up and management of glaucoma. Advanced glaucomatous loss is defined according to Hodapp, Parrish and Anderson’s classification as mean deviation less than -12 dB or more than 37 points depressed below the 5% probability level or more than 20 points below the p < 1% level or absolute deficit (0 dB) in the 5 central degrees or sensitivity < 15 dB in the 5 central degrees in both hemifields. There is a limit to the visibility of the standard size III white perimetric stimulus in the patients with significantly impaired visual sensitivity. In order to increase the dynamic range into the low vision region and to make the stimulus more visible to these patients the Goldmann stimulus size V is typically used, instead of the standard size III. It is 16 times larger in area and is therefore more detectable.
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