George Teunis, 70, an optician in Washington, died at Suburban Hospital in Bethesda Wednesday following a heart attack.

Mr. Teunis was a member of a family of opticians. He joined several of his brothers in the Teunis Opticians firm after moving to the Washington area from his native Grand Rapids, Mich., in 1923.

In 1943, he opened his own business, Medical Center Opticians, and operated it until he suffered a stroke in 1953. Mr Teunis was forced into retirement at that time and his brothers took over the business four years later.

Mr. Teunis was a member of the Bethesda-Chevy Chase Lions Club, the Washington Reciprocity Club, and the Touchdown Club. He was a former president of the Guild of Prescription Opticians of Washington. He also was a charter member and former treasurer of the Bethesda-Chevy Chase County Club.

Survivors include his wife, Agnes V., of the home at Rossnor Leisure World in Silver Springs; a son, G. Clayton, of Bethesda; a daughter, Mary ann Goodling, of Potomac four sisters, Ollie DeVries, of Grand Rapids, Jean Keaveny, of Rossmoor, and Bernic Mann and Ruth Teunis, both Arlington, Ralph, of Gaithersburg, H. of Washington; four brothers, John, of Albert, of Grand Rapids, and Alfred, of Crofton, Md., and seven grandchildren.