So sánh phương pháp

	Chỉ số Bệnh lý Bề mặt Nhãn cầu	Thang đo Tác động của Suy giảm Thị lực
Lĩnh vực	Nhãn khoa	Nhãn khoa
Họ	Process / pipeline	Process / pipeline
Năm ra đời	2000	2000
Người khởi xướng	Schiffman RM, Christianson MD et al.	Wolffsohn JS, Cochrane AL et al.
Loại	Self-report	Self-report
Công trình gốc	Schiffman, R. M., Christianson, M. D., Jacobsen, G., Hirsch, J. D., & Reis, B. L. (2000). Reliability and validity of the Ocular Surface Disease Index. Arch Ophthalmol, 118(5), 615-621.	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.
Tên gọi khác	OSDI, Ocular Surface Index	IVI, Impact Vision Impairment
Liên quan	4	4
Tóm tắt	The OSDI is a 12-item symptom questionnaire designed to screen for and grade the severity of dry eye disease and other ocular surface disorders. Developed by Schiffman, Christianson, and colleagues (2000), it quantifies patient-reported ocular irritation and visual function limitations across frequency and impact domains. The OSDI is the most widely used screening tool for dry eye in clinical practice, clinical trials, and epidemiological studies worldwide.	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.