The invention discloses an application of a tear biomarker combination in preparation of a
reagent or a kit for screening or auxiliary diagnosis of
retinopathy (ROP) of a premature infant, and a corresponding kit. The biomarker combination comprises four proteins such as
Src family kinase Lyn,
filamin A (FLNA) and the like, and metabolites such as 3, 5-di-tert-butyl-4-hydroxybenzaldehyde (BHT-CHO),
caffeine and the like. The detection sample is
tears of a subject, and the
reagent or the kit can be used for dividing the risk of the ROP into high risk,
medium risk or low risk, and / or dividing the ROP diagnosis result into treatment, no treatment or no ROP. The biomarker is identified based on the leading-edge
mass spectrometry technology, the limitation of traditional dependence on professional physicians and invasive detection is broken through, the method has the advantages of being non-invasive, easy and convenient to operate, objective, economical and the like, an existing screening diagnosis method can be effectively supplemented, ROP early-stage precise prevention and control can be promoted, and the method is especially suitable for areas lack of medical resources.