विधियों की तुलना करें

	ग्लूकोमा क्वालिटी ऑफ लाइफ-15	दृष्टिबाधा प्रभाव पैमाना (Impact of Vision Impairment Scale)
क्षेत्र	नेत्र विज्ञान	नेत्र विज्ञान
परिवार	Process / pipeline	Process / pipeline
उद्भव वर्ष	1998	2000
प्रवर्तक	Nelson PA, Aspinall PA et al.	Wolffsohn JS, Cochrane AL et al.
प्रकार	Self-report	Self-report
मौलिक स्रोत	Nelson, P., Aspinall, P. A., Papasthathis, K., et al. (1998). Quality of life in glaucoma and its relationship with visual function. J Glaucoma, 7(2), 71-78.	Wolffsohn, J. S., & Cochrane, A. L. (2000). Design of the low vision quality-of-life questionnaire (LVQOL) and measurment of its item and scale validity and reliability. Optometry & Vision Science, 77(3), 144-152.
उपनाम	GQL-15, Glaucoma QoL	IVI, Impact Vision Impairment
संबंधित	4	4
सारांश	The GQL-15 is a 15-item, disease-specific quality of life questionnaire designed to measure the impact of glaucoma on patients' daily functioning and psychological well-being. Developed by Nelson, Aspinall, and colleagues in the UK (1998), the GQL-15 emphasizes glaucoma-specific concerns—visual field loss, peripheral vision, lighting sensitivity, and falls risk—making it a sensitive complement to generic or broader vision-related instruments in glaucoma populations.	The Impact of Vision Impairment (IVI) scale is a quality-of-life instrument designed specifically for patients with significant vision loss (low vision) to measure the psychological, functional, and social burden of visual impairment. Developed by Wolffsohn, Cochrane, and colleagues (2000), the IVI captures domains including emotional impact (distress, frustration), functional limitations (mobility, ADLs), social participation, and role fulfillment in populations with moderate to severe vision loss where generic or mild-vision-focused instruments are insensitive.