A liquid crystal display arrangement having improved optical properties is disclosed. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. A fiber receives the infrared light from the first optical assembly, and a sensor that is optically coupled to the fiber proximal end produces a signal that correlates to an average temperature of each of the multiple tissue surface areas.