Prince Abdulaziz bin Ahmad bin Abdulaziz, Chairman of the regional bureau of international agency for combating blindness in the Middle east will participate in a meeting of board of directors of the international initiative for combating trachoma, scheduled to be held on Wednesday in New York city. Prince Abdulaziz bin Ahmad, who is also chairman of the board of directors of Impact for eastern Mediterranean for combating blindness in Middle east, will also participate in the annual meeting of the American academy for ophthalmic medicine due to take place in Las Vegas city from November 11-14.