The most rapidly growing segment of the ophthalmic lens market is the 'thin and light' segment. A major force for this growth has been the consumer, who wants thinner, lighter and better looking eyewear. In fact, the consumer demand for thin and light lenses increased by over 44% last year. There are essentially three options that allow thinner, lighter and flatter (more cosmetically appealing) lenses. These include: (1) a higher index material (higher than standard CR-39 registered or glass), (2) an aspheric design, or (3) a combination of both. However, current high index materials have certain properties that can affect the optical performance and ease of processing of spectacle lenses. Also, most current aspheric designs benefit only hyperopes, which represent about 30% of the spectacle lens wearers. Sola's ASL aspheric single vision lens in Spectralite combines a patented new high-index material with a specially flattened and aspheric design. This unique combination optimizes the traditional thin, light, and cosmetic benefits of high index while achieving optical performance comparable to CR-39. And, unlike other aspheric lenses, ASL in Spectralite is available in both plus and minus prescriptions, allowing you to meet the needs of more patients than ever before.