He has a postdoctoral in Neural Biology. His major area of expertise is in circadian biology and in retinal physiology. He started his own laboratory at the McGovern Medical School at The University of Texas Health Science Center at Houston. He has expertise in both retinal physiology and biological rhythms, as well as he studied aspect of modern neuroscience, from molecular biology techniques to electrical recording techniques to biochemistry, represent valuable assets to investigate the circadian organization of retinal function.