[Code of Federal Regulations] [Title 42, Volume 4] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 42CFR436.530] [Page 197] TITLE 42--PUBLIC HEALTH CHAPTER IV--CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 436_ELIGIBILITY IN GUAM, PUERTO RICO, AND THE VIRGIN ISLANDS-- Subpart F_Categorical Requirements for Medicaid Eligibility Sec. 436.530 Definition of blindness. (a) Definition. The agency must use the definition of blindness that is used in the State plan for AB or AABD. (b) State plan requirement. The State plan must contain the definition of blindness, expressed in ophthalmic measurements.