Project design— The Secretary shall design the demonstration project in a manner so as to provide a rich, well-structured, and defined data set from which inferences about the fiscal impact on the Federal Supplementary Medical Insurance Trust Fund under section 1841 of the Social Security Act (
42 U.S.C. 1395t) resulting from the permanent coverage under part B of title XVIII of the Social Security Act (
42 U.S.C. 1395j et seq.) of low vision devices (including coverage for subcategories or subsets of such devices) can be made using appropriate statistical methods. To the maximum extent possible, such demonstration project shall evaluate the fiscal impact of permanent coverage under such part for the most function-rich, most powerful, and most expensive low vision devices.