Vertaile menetelmiä

	Glaukooma Quality of Life-15	Näkövamman vaikutus -asteikko
Tieteenala	Silmätautioppi	Silmätautioppi
Menetelmäperhe	Process / pipeline	Process / pipeline
Syntyvuosi	1998	2000
Kehittäjä	Nelson PA, Aspinall PA et al.	Wolffsohn JS, Cochrane AL et al.
Tyyppi	Self-report	Self-report
Alkuperäislähde	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.
Rinnakkaisnimet	GQL-15, Glaucoma QoL	IVI, Impact Vision Impairment
Liittyvät	4	4
Tiivistelmä	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.