Facial Vitiligo Area Scoring Index
Physician-Reported Clinical Assessment
A focused vitiligo severity measure restricted to the face, which accounts for approximately 3% of total body surface area. F-VASI is particularly important because facial vitiligo has the greatest impact on quality of life.
About the F-VASI
Clinical Background
F-VASI uses the same calculation method as the total body VASI but is restricted to the face, which accounts for approximately 3% of total body surface area (approximately 3 hand units maximum). The score is calculated as: Hand Units of facial vitiligo involvement multiplied by the Residual Depigmentation grade.
F-VASI is particularly important because facial vitiligo has the greatest impact on quality of life. Psychometric evaluation from the TRuE-V studies confirmed excellent test-retest reliability (ICC: 0.943). A 75% or greater improvement in F-VASI is considered treatment success by most patients and dermatologists.
References
- Hamzavi I, Jain H, McLean D, Shapiro J, Zeng H, Lui H. Parametric modeling of narrowband UV-B phototherapy for vitiligo using a novel quantitative tool: the Vitiligo Area Scoring Index. Arch Dermatol. 2004;140(6):677-683. doi:10.1001/archderm.140.6.677
- Bibeau K, Butler K, Wang M, Skaltsa K, Hamzavi IH. Psychometric evaluation of the facial and total Vitiligo Area Scoring Index instruments in the TRuE-V Phase 3 Studies. Dermatol Ther (Heidelb). 2024;14(8):2223-2234. doi:10.1007/s13555-024-01223-y
- Bae JM, Zubair R, Ju HJ, et al.. Development and validation of the fingertip unit for assessing Facial Vitiligo Area Scoring Index. J Am Acad Dermatol. 2022;86(2):387-393. doi:10.1016/j.jaad.2021.06.880
Getting Started
A physician referral is required to access our medical services. Contact your primary care provider to begin the referral process.
