Journal of Clinical Medicine
Reference Estimates of Mean Tear Film Lipid Layer Thickness Measured with LipiView® and LipiView II® in Healthy Adults: A Systematic Review and Meta-Analysis
Background/Objectives: Tear film lipid layer thickness (LLT) is an important parameter of ocular surface function and can be objectively measured using LipiView ocular surface interferometry. However, reference LLT estimates in clinically healthy populations remain inconsistent. This systematic review and meta-analysis aimed to estimate pooled reference LLT values and explore potential sources of variability. Methods: A systematic search of PubMed, Scopus, and Web of Science was performed according to PRISMA 2020 g …