Glaucoma was co-diagnosed in 18 patients (4.2%; BEST1 ×2, COL2A1 ×3, FBN1 ×2, FLVCR1, KIZ, MAK, MFRP, MYO7A, NR2E3, OAT, RHO ×3, RP1, USH2A). The gene discussed is COL2A1; the disease is glaucoma.