Daniel S. Durrie

Ophthalmic Imaging Systems, Inc. manufactures ophthalmic digital imaging systems. Its principal activity is to design, develop, manufacture and market digital imaging system, image enhancement and analysis software and related products and services used by the practitioners in the ocular healthcare field. The current flagship product in the Group's angiography line is its digital imaging systems. Its products include WinStation systems, Digital Fundus Imager, Digital Slit Lamp Imager and Slit Lamps. Retina specialists and general ophthalmologists use the WinStation systems. The company was founded on July 14, 1986 and is headquartered in Sacramento, CA.

NovaMed LLC manages, develops, and acquires ambulatory surgery centers. The firm also owns and operates optical laboratories, an optical products purchasing organization, and a marketing products and services business. Its optical laboratory business specializes in surfacing, finishing, and distributing corrective lenses and eyeglass lenses for ophthalmologists, optometrists, opticians, and optical retail chains. The company was founded in March 1995 and is headquartered in Nashville, TN.

Part of American Academy of Ophthalmology, Inc., International Society of Refractive Surgery (ISRS) is an international society that focuses on refractive surgery. The company is based in San Francisco, CA. ISRS offers various resources such as meetings, webinars, and a multimedia library to its members. Members can also benefit from discounts on editing services for the Journal of Refractive Surgery and article processing charges for open-access articles. ISRS also provides an externship program for members to work alongside world-renowned refractive and cataract surgeons. The company hosts an annual meeting, the Refractive Surgery Subspecialty Day, where members can learn about the latest topics in cataract, refractive, and lens-based surgery.

Durrie Vision Equipment LLC operates as a refractive surgery and research facility. It specializes in laser vision correction such as advanced LASIK and refractive lens procedures. The company was founded by Daniel S. Durrie and is headquartered in Overland Park, KS.

IOR Partners LLC develops office-based surgery suites. The company was founded by Rick Prell and is headquartered in Boulder City, NV.

Ior Holdings, Inc. provides investment services. The company is headquartered in Kansas City, MO.