Dr. Hannah de Guzman is an ophthalmologist whose practice includes general ophthalmology (which includes cataract surgery) with subspecialty work in glaucoma.

Dr. de Guzman obtained her medical degree at the University of the Philippines Manila through the prestigious 7-year INTARMED program. She trained in ophthalmology at the University of the Philippines - Philippine General Hospital. She took post-residency training (fellowship) in Glaucoma at the Philippine General Hospital and clinical fellowship training in Glaucoma at the Sydney Eye Hospital in Sydney, Australia. She is certified by the Philippine Board of Ophthalmology.

Dr. de Guzman is affiliated with various hospitals and eye centers in Metro Manila. She is a member of the Philippine Academy of Ophthalmology, the Philippine Glaucoma Society, and the Philippine Society of Cataract and Refractive Surgery. She is the lead author or co-author of articles published in peer-reviewed medical journals. She has delivered numerous scientific lectures and presentations at specialty society meetings and other events locally and internationally. She is a reviewer for local and international medical journals.