Genetic testing for inherited eye disease.

T he data, devices, and molecular techniques that have become part of the practice of medicine as a result of the Human Genome Project are for most clinicians both inspiring and intimidating. While the potential for tests that can help make very accurate diagnoses of rare genetic diseases and that can identify genetic predispositions to more common ones is exciting, the translation of this concept to practice has been slower and more complicated than most people would have imagined.