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UC Davis Comprehensive Cancer Center

Mary O'Hara, M.D. View profile as PDF

Mary  O'Hara

Philosophy of Care

Dr. O'Hara's philosophy of care is to make sure that patients and their families are treated with respect, all aspects of care are explained to families, and their input is elicited.

Clinical Interests

Dr. O'Hara's clinical interests focus on the treatment of amblyopia and strabismus, treatment of cataracts and other anterior segment disorders, and adult strabismus. Her research interests include amboyopia and cataract treatment and cloudy wrngas.




Ophthalmology, Pediatric Ophthalmology


Pediatric Ophthalmology


Ophthalmology Clinic

Center/Program Affiliation:


Laser Vision Correction Services - Department of Ophthalmology and Vision Science
Ophthalmology Clinic
77 Cadillac Dr.
Sacramento, CA 95825
Driving Directions
Phone: 916-734-6650

Lawrence J. Ellison Ambulatory Care Center
Ophthalmology Clinic-Eye Center
4860 Y St., Suite 2400
Sacramento, CA 95817
Driving Directions
Phone: 916-734-6602

Additional Phone:

Physician Referrals: 800-4-UCDAVIS (800-482-3284)



M.D., Uniformed Services University of the Health Sciences, Bethesda MD 1981
Pre-Med, Columbia University, New York City NY 1976
B.S., Fordham University, Bronx NY 1974


Brooke Army Medical Center, San Antonio TX 1981-1982


Ophthalmology, Brooke Army Medical Center, San Antonio TX 1982-1985


Pediatric Ophthalmology, Wills Eye Hospital, Philadelphia PA 1988-1989

Board Certifications:

American Board of Ophthalmology, 2004
National Board of Medical Examiners, 1982

Professional Memberships:

American Academy of Ophthalmology
American Academy of Pediatrics
American Association for Pediatrics Ophthalmology and Strabismus
American College of Surgeons
California Medical Association
Fordham Alumni Association
Sierra Sacramento Valley Medical Society
Society of Military Ophthalmologists
Women in Opthalmology

Select Honors and Awards:

Cold War Service Medal, 2001

Army Superior Unit Award, 1993

National Defense Service Ribbon, 1991

Military Outstanding volunteer service medal, 1989

Meritorious Service Medal, 1988

Brooke Army Medical Center - Commanding General?s Award in recognition for outstanding research, 1985

Army Service Ribbon, 1981

Select Recent Publications:

Bradfield YS, Kaminski BM, Repka MX, Melia M; Pediatric Eye Disease Investigator Group, Davitt BV, Johnson DA, Kraker RT, Manny RE, Matta NS, Schloff S, Weise KK. Comparison of Tono-Pen and Goldmann applanation tonometers for measurement of intraocular pressure in healthy children. J AAPOS. 2012 Jun;16(3):242-8.

Pediatric Eye Disease Investigator Group, Mohney BG, Cotter SA, Chandler DL, Holmes JM, Chen AM, Melia M, Donahue SP, Wallace DK, Kraker RT, Christian ML, Suh DW. A Randomized Trial Comparing Part-time Patching with Observation for Intermittent Exotropia in Children 12 to 35 Months of Age. Ophthalmology. 2015 Aug;122(8):1718-25.

Pediatric Eye Disease Investigator Group, Cotter SA, Mohney BG, Chandler DL, Holmes JM, Repka MX, Melia M, Wallace DK, Beck RW, Birch EE, Kraker RT, Tamkins SM, Miller AM, Sala NA, Glaser SR. A randomized trial comparing part-time patching with observation for children 3 to 10 years of age with intermittent exotropia. Ophthalmology. 2014 Dec;121(12):2299-310.

Gandhi NG, Lin LK, O'Hara M. Sildenafil for pediatric orbital lymphangioma. JAMA Ophthalmol. 2013 Sep;131(9):1228-30.

Rizzo JL, Lloyd M, O'Hara M.Pediatric Internuclear Ophthalmoplegia. J of Neuro-Ophthalmology. 2013;33(2): 134-136.

Weise KK, Kaminski B, Melia M, Repka MX, Bradfield YS, Davitt BV, Johnson DA, Kraker RT, Manny RE, Matta NS, Schloff S; Pediatric Eye Disease Investigator Group. Intraobserver reliability of contact pachymetry in children. J AAPOS. 2013 Apr;17(2):144-8.

O'Hara MA. Pediatric intraocular lens power calculations. Curr Opin Ophthalmol. 2012 Sep;23(5):388-93.

Pediatric Eye Disease Investigator Group, Bradfield YS, Melia BM, Repka MX, Kaminski BM, Davitt BV, Johnson DA, Kraker RT, Manny RE, Matta NS, Weise KK, Schloff S. Central corneal thickness in children. Arch Ophthalmol. 2011 Sep;129(9):1132-8.

O'Hara MA, Mannis MJ. Pediatric Penetrating Keratoplasty. International Ophthalmologic Clinics. 2013;53(2): 59-70.

O'Hara M. Pediatric Diagnoses You Don’t Want to Miss. Clinician’s Corner,  Focal Points, Volume XXX, number 9, September 2012.

To see if Mary O'Hara is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).