??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.Any retinitis pigmentosa through which the cause of the condition is actually a mutation during the RHO gene. [from MONDO]??? ?? ??: ???? ??? ??? ? ?? ?? ??? ?? ???? ?????.By adolescence, all people today with MLIV have critical Visible impairment. A neurodegenerative component of MLIV