Kathryn Masselam Hatch, M.D.

Director, Refractive Surgery Service
Site Director, Mass. Eye and Ear, Waltham


Cornea and External Diseases

Refractive Surgery


Comprehensive Ophthalmology

Corneal Cross-linking



Board Certification

  • Ophthalmology

1601 Trapelo Road
Reservoir Place, Ste. 184
Waltham, MA 02451
Phone: 781-890-1023
Fax: 781-890-2507



Dr. Hatch is a full-time member of the Mass. Eye and Ear Cornea and Refractive Surgery Service and is the Site Director of Mass. Eye and Ear Waltham. She is an accomplished surgeon in:

  • All-laser refractive surgery techniques (e.g., LASIK and PRK)
  • Complex and refractive laser-assisted cataract surgery with intraoperative aberrometry
  • Corneal cross-linking and Intacs (intrastromal corneal ring segments) for keratoconus and post-LASIK ectasia
  • Advanced techniques in corneal transplant surgery

Since joining the staff, she has helped bring new technologies to Mass. Eye and Ear, including

  • Refractive laser-assisted cataract surgery with intraoperative aberrometry
  • Collagen cross-linking
  • Inlays for presbyopia
  • Lipiflow for dry eye disease
  • Visumax laser—the only laser that can perform SMILE (small incision lenticule extraction), a minimally invasive surgery for nearsightedness.

A key opinion leader in the treatment of keratoconus, Dr. Hatch specializes in a newly FDA-approved procedure known as corneal cross-linking. This minimally invasive, in-office procedure is the only treatment that can slow or stop the progression of keratoconus. As an investigator in a phase IV clinical trial, she has been performing the procedure since 2011. In 2016, she became the first person at Mass. Eye and Ear to perform cross-linking with the FDA-approved technology. Today, she is one of the busiest cross-linking specialists in the United States. She is also embarking on a research project to help develop a screening tool for keratoconus and post-LASIK ectasia.

Additionally, Dr. Hatch has experience in the treatment of ocular surface disease and dry eye, corneal dystrophies, and anterior segment reconstruction. She performs cutting-edge corneal transplantation surgery, including both full-thickness penetrating keratoplasty and partial-thickness transplant surgery (DSAEK/Descemet Stripping Automated Endothelial Keratoplasty, DMEK/Descemets Membrane Endothelial Keratoplasty, and DALK/Deep Anterior Lamellar Keratectomy). She also performs IEK (Intralase Enabled Keratoplasty), and she was the first eye surgeon in New England to perform IE-DALK (Intralase Enabled Deep Anterior Lamellar Keratoplasty).

Dr. Hatch is an active fellow of the American Academy of Ophthalmology and a diplomat of the American Board of Ophthalmology. She is a member of several organizations, including the New England Ophthalmic Society, the Cornea Society, the American Society of Progressive Enterprising Surgeons, the American European College of Ophthalmic Surgeons, and the Massachusetts Medical Society. She has been invited to speak at several regional, national, and international meetings. In 2016, Ocular Surgery News named Dr. Hatch as one of the 300 Premier Innovators in refractive cataract surgery in the United States.

Clinical Interests

All-laser refractive surgery (including, LASIK, PRK, and SMILE), complex and refractive laser-assisted cataract surgery, corneal cross-linking and Intacs (intrastromal corneal ring segments) for keratoconus

Research Interests

Keratoconus, refractive cataract surgery


For a full publication list, please see her CV.

Contralateral orbital melanoma 28 years following enucleation for choroidal melanoma. Connolly G, Wladis G, Masselam KM, Weinberg DA. Orbit. 2007 Dec; 26(4):291-4.

The structure and function of the limbal stem cell and the disease states associated with limbal stem cell deficiency. Masselam KL, Dana R. Int Ophthalmol Clin. 2009 Winter; 49 (1):43-52.

Benchmarking outcomes in resident-performed cataract surgery with toric intraocular lenses. Moreira H, Hatch KM, Greenberg P. Clin Experiment Ophthalmol. 2013 Aug; 41(6): 624-6.

Delayed epithelial closure after PRK associated with topical besifloxacin use. Talamo JH, Hatch KM, Woodcock EC. Cornea. 2013, Oct ;32(10)1365-8.

Consultation section, corneal surgical problem, consultation #3. Hatch KM. J Cataract Refract Surg. 2013 Oct; 39 (10): 1620-1.

Laser-assisted cataract surgery: benefits and barriers. Hatch KM, Talamo JH. Curr Opin Ophthalmol. 2014 Jan; 25(1):54-61.

View a complete list of publications on pubmed.gov>>

To learn more about Dr. Hatch, read her "Meet a Specialist" profile here.



  • Biochemistry, Middlebury College, BA
  • College of Medicine, University of Vermont, M.D.


  • Ophthalmology, New York University/Manhattan Eye, Ear and Throat Hospital


  • Cornea/Refractive Surgery, Mass. Eye and Ear