Dr. Stephen R. Glaser

David L. Guyton, M.D., is the Zanvyl Krieger Professor of Ophthalmology. He is internationally known for his contributions, inventions, and teaching in the fields of ophthalmic optics, clinical refraction, potential acuity testing, and ocular motility. His clinical practice in strabismus is heavily surgical, both pediatric and adult, with emphasis on re-operations and cyclovertical surgery, using adjustable sutures. With adults comprising more than 80 percent of his strabismus surgical cases, Dr. Guyton has contributed significantly to our knowledge of strabismus complications from local anesthetics, the “inverted Brown pattern,” the “dragged-fovea diplopia syndrome,” theories of how and why strabismus develops in the first place, and how and why it can change over time. Dr. Guyton is currently developing automated instruments for the vision screening of infants and children. Dr. Guyton is rated as a Distinguished provider by MediFind in the treatment of Brown Syndrome. His top areas of expertise are Strabismus, Brown Syndrome, Amblyopia, and Esotropia.

Thomas Bosley is an Ophthalmologist and a Neurologist in Baltimore, Maryland. Dr. Bosley is rated as a Distinguished provider by MediFind in the treatment of Brown Syndrome. His top areas of expertise are Duane-Radial Ray Syndrome, Sulfite Oxidase Deficiency, Isolated Duane Retraction Syndrome, and Kearns-Sayre Syndrome.

Dr. Couser obtained his bachelor’s degree from the University of Virginia and his Medical Doctorate from the Virginia Commonwealth University School of Medicine (VCU SOM). Dr. Couser’s ophthalmology residency was completed at Howard University where he served as co-chief resident in the last year of his residency. He received fellowship training in pediatric ophthalmology and adult strabismus at Emory University. Dr. Couser received a master’s degree in biotechnology from the Johns Hopkins University and completed a residency in clinical genetics at the University of North Carolina at Chapel Hill. He is one of only a few individuals currently board-certified by both the American Board of Ophthalmology and the American Board of Medical Genetics and Genomics. CV https://www.hopkinsmedicine.org/-/media/wilmer/documents/cvs/couser-cv Research Summary My primary research focus involves the identification and management of genetic eye diseases including rare inherited disorders affecting the eyes. Research and scholarly activities have been an integral component of my career path. I have been the principal investigator on 10 clinical trial/IRB studies and a co-investigator on others, participated with several committees or advisory panels related to research activities. I have been credited with over 120 book chapter, journal article and abstract publications. In addition, I served as the primary author/sole editor for a textbook titled Ophthalmic Genetic Diseases: A Quick Reference Guide to the Eye and External Ocular Adnexa Abnormalities, 1st Edition, published by Elsevier in 2018, which is one of only a few textbooks published in this subject area. I also served as a grant review panelist for the National Eye Institute Career Development Awards. Selected Publications *Couser NL, Masood MM, Strande NT, Foreman AKM, Crooks K, Weck KE, Lu M, Wilhelmsen KC, Roche M, Evans JP, Berg JS, Powell CM. 2015. The phenotype of multiple congenital anomalies- hypotonia-seizures syndrome 1: Report and review. Am J Med Genet Part A 9999A:1–6 *Couser NL, Lambert SR. Botulinum toxin: A treatment of consecutive esotropia in children. Strabismus 2012; 20(4):158-161 Couser NL, Lenhart PD, Hutchinson AK. Augmented Hummelsheim procedure to treat complete abducens nerve palsy. J AAPOS 2012;16(4):331-5 *Natario L. Couser, Maheer M. Masood, Arthur S. Aylsworth, and Roger E. Stevenson. Ocular manifestations in the X-linked intellectual disability syndromes. Ophthalmic Genet. 2017, Jan 23:1-12 *Couser NL, Brooks BP, Drack AV, Shankar SP. The evolving role of genetics in ophthalmology. Ophthalmic Genet. 2021 Jan 12:1-4. doi: 10.1080/13816810.2020.1868011. Dr. Couser is rated as a Distinguished provider by MediFind in the treatment of Brown Syndrome. His top areas of expertise are Epicanthal Folds, Strabismus, Brown Syndrome, and Hypotonia.