Moreover, N‐ethyl‐N‐nitrosourea‐mutagenized C57BL/6 J mice carrying a mutation in the helicase ATP‐binding domain of Smarca4 (NM_001174078.1:c.2381C > T; NP_001167549.1:p.Thr794Ile) showed multiple physical defects, including anophthalmia (MGI:5313991), and a de novo germline heterozygous deletion of 1.23 Mb spanning SMARCA4 (chr19:10,640,379‐11,873,382, GRCh37/hg19) has been reported in a female patient with microphthalmos (DECIPHER #250826) (supplementary material, Figures S4 and S5). The gene discussed is SMARCA4; the disease is microphthalmia.