Keen Dry Eye Spa — Evansville, Indiana. Advanced dry eye diagnosis and treatment including IPL, RF, Tixel, LLLT, OptiLIFT from Lumenis, Rinsada, Zest, amniotic membrane therapy, and Vital Tears serum drops. Serving the Tri-State area including Henderson, Owensboro, Terre Haute, Marion, Vincennes, Jasper and Paducah. No referral needed.