From the WES data, we analyzed all causal genes for BBS, but did not find any clinically relevant variants in those genes except for the c.1339 G > A variant in BBS1. Patient 3 meets the major clinical features of BBS with regard to hypothyroidism, polydactyly, obesity, strabismus, impaired intelligence in comparison to peers, and language delay. This evidence concerns the gene BBS1 and Strabismus.