مقایسهٔ روش‌ها

	شاخص عملکرد بینایی VF-14	شاخص بیماری سطح چشم
حوزه	چشم‌پزشکی	چشم‌پزشکی
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1994	2000
پدیدآور	Steinberg EP, Tielsch JM et al.	Schiffman RM, Christianson MD et al.
نوع	Self-report	Self-report
منبع بنیادین	Steinberg, E. P., Tielsch, J. M., Schein, O. D., et al. (1994). The VF-14. An index of functional impairment in patients with cataract. Arch Ophthalmol, 112(5), 630-638.	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.
نام‌های دیگر	VF-14, Visual Function-14	OSDI, Ocular Surface Index
مرتبط	4	4
خلاصه	The VF-14 is a 14-item, disease-specific functional status questionnaire developed to measure visual disability from cataract and its response to cataract surgery. Created by Steinberg, Tielsch, and colleagues (1994), the VF-14 focuses on difficulty with 14 common daily activities (e.g., reading small print, driving day/night, recognizing faces) and is used primarily to assess cataract severity, prioritize surgery, and document post-operative improvement in functional vision.	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.