Refractive Surgeon in Raleigh, NC


Dr. Isaac Porter LASIK surgeon and refractive surgeon in Raleigh, NC

Dr. Sifrig grew up in small town Michigan before moving to warmer climates to get his undergraduate degree in Biology at Florida Gulf Coast University. He continued his education at the University of Florida College of Medicine where he graduated number one in his class and was elected to the prestigious Alpha Omega Alpha honor society. Dr. Sifrig then completed his internship year at Orange Park Medical Center before moving to Dallas, Texas for his ophthalmology residency at UT Southwestern Medical Center.

During his ophthalmology residency at UT Southwestern, one of the busiest surgical programs in the country, Dr. Sifrig trained in modern cataract surgery, laser cataract surgery, and advanced technology lens implants including toric, EDOF, and multifocal lenses. He also discovered a special interest in modern refractive surgery. This interest came naturally – most of his family members have had LASIK and would universally agree it was one of the best decisions they ever made. Following residency, Dr. Sifrig joined Porter Ophthalmology as a fellow of the Refractive Surgery Alliance to further his mastery of refractive surgery.

When not busy in the clinic, Dr. Sifrig enjoys spending free time with family and friends and getting outdoors.




  • Four years of undergraduate education
    • Florida Gulf Coast University, 2010 to 2014, Fort Myers, FL
      • Degree: B.S. in Biology
      • Minor in Chemistry
      • Summa Cum Laude
    • Four years of medical school
      • University of Florida College of Medicine, 2014 to 2018, Gainesville, FL
        • Degree: MD
        • Class Rank: 1
        • Alpha Omega Alpha Honor Medical Society Election


  • One year of internship
    • Internship, Orange Park Medical Center: 2018 to 2019, Orange Park, FL


  • Three years of residency training in ophthalmology and eye care.
    • Ophthalmology Residency, University of Texas Southwestern: 2019 to 2022, Dallas, TX
      • Chief Resident 2021 to 2022


Dr. Sifrig first came to Porter Ophthalmology to do his fellowship—a year of medical training where a doctor can truly  focus down on their specialty.

  • Refractive Surgery Fellowship, Refractive Surgery Alliance/Porter Ophthalmology: 2022 to 2023, Raleigh, NC


Dr. Sifrig is a proud member of prominent ophthalmological organizations, all of which work to continue their doctors’ education, as well as spread information about refractive surgery..

  • Medical Organizations
    • Refractive Surgery Alliance
    • American Academy of Ophthalmology
    • American Society of Cataract and Refractive Surgery