Biallelic point variants that impair the phosphatase activity of INPP5K, giving rise to excess PtdIns(4,5)P2 in affected individuals’ cells, have been related to congenital muscular dystrophy with additional clinical manifestations, including cataracts, intellectual impairments, and short stature (Osborn et al., 2017; Wiessner et al., 2017). This evidence concerns the gene INPP5K and Cognitive impairment.