Additional mutations in 29 probands were identified, including 28 of 61 new probands and one proband previously analyzed.
Overall, mutations in the 217 RetNet genes may explain 57.1% (93/163) of Chinese probands with cone-rod dystrophy.
Of the 93 probands with mutations, 84 had mutations in 12 of the 30 CORD genes, and nine in 5 of the other 187 genes.
The most frequently mutated gene was CNGA3, accounting for 57.0% (53/93) of probands with mutations.