The amount of a retinal cone rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma (human) when measured in cerebrospinal fluid. The trait is OBA_2058748 (level of retinal cone rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid retinal cone rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma (human) amount.