مقایسهٔ روش‌ها

	مقیاس تأثیر اختلال بینایی (Impact of Vision Impairment Scale)	پرسشنامه عملکرد بینایی مؤسسه ملی چشم-25 (NEI-VFQ-25)
حوزه	چشم‌پزشکی	چشم‌پزشکی
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2000	2001
پدیدآور	Wolffsohn JS, Cochrane AL et al.	Mangione CM, Lee PP et al.
نوع	Self-report	Self-report
منبع بنیادین	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.	Mangione, C. M., Lee, P. P., Gutierrez, P. R., et al. (2001). Development of the 25-item National Eye Institute Visual Function Questionnaire. Arch Ophthalmol, 119(7), 1050-1058.
نام‌های دیگر	IVI, Impact Vision Impairment	VFQ-25
مرتبط	4	4
خلاصه	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.	The NEI-VFQ-25 is a 25-item self-report questionnaire measuring the impact of vision loss on health-related quality of life across multiple functional and psychological domains. Developed by the National Eye Institute (Mangione et al., 2001), it is the most widely used vision-specific QoL instrument in ophthalmology and serves as the gold standard for quantifying patient-reported visual disability across diverse eye conditions.