Recombinant bovine basic fibroblast growth factor (r-bFGF) was adopted to treat xerophthalmia patients within one month after phacoemulsification, which could promote basic tear secretion, subjective dry eye sensation score, and corneal fluorescence staining score, indicating that this method is effective when treating xerophthalmia after phacoemulsification [39]. This evidence concerns the gene FGF2 and Keratoconjunctivitis sicca.