69 E 71st St between Madison and Park Aves. Subway: 6 to 71st St. Pick up high-end eyewear for up to half off at this annual sale. Standouts include Thierry Lasry oversize sunnies, clipped from $375 to $240; Lafont cat-eye frames marked $240 (retail $390); and Francois Pinton aviators, whittled from $325 to $195.