Patent ID: 8131333

Claim:
An ophthalmic sensor, comprising an ophthalmic device having a polymer matrix and a molecular sensing moiety in and/or on said ophthalmic device, wherein the molecular sensing moiety is capable of interacting or reacting with sugar to provide an optical signal which is indicative of sugar level in an ocular fluid, wherein the molecular sensing moiety is a compound having a structural formula (1): wherein R′ is H or an olefinically unsaturated, crosslinkable radical having up to 25 carbon atoms; R is H, NR 1 R 2 , CN, OCH 3 , or a radical constituent capable of donating an electron to or accepting an electron from an adjacent aromatic system, wherein R 1 is H or C 1 -C 6 alkyl and R 2 is a C 3 -C 25 radical terminated with: and n is an integer from 1 to 5.