The Ophthalmology Specialty Service at Angell offers early morning/evening and Saturday appointments for your convenience. Drs. Biros and Coster are both board certified in ophthalmology and are uniquely qualified to provide extensive diagnosis and treatment of inherited, acquired or traumatic conditions involving the eyelids, cornea, iris, lens, retina, optic nerve and orbit.

Examinations are provided on a wide variety of species using direct and indirect ophthalmoscopy, slit-lamp biomicroscopy, Schirmer tear testing, topical fluorescein staining, tonometry, gonioscopy, ocular ultrasonography, CT, MRI, and electroretinography (to detect retinal degeneration).

Surgical correction of most ocular disorders is available, including but not limited to:

  • Cataract surgery with lens implantation, and removal of luxated lenses
  • Eyelid disorders such as tumor removal, entropion, laceration, and cherry eye repair,
  • Cryosurgery for distichia or other hair growth abnormalities,
  • Corneo-conjunctival surgery for corneal ulcers, feline sequestrum, lacerations, dermoids, and foreign bodies,
  • Laser cyclophotocoagulation therapy for glaucoma and prophylactic retinopexy for cases at risk of retinal detachment,
  • Ocular prosthetics, or gentamycin injections for glaucoma,
  • And enucleation for tumors of the eye

What is a Veterinary Ophthalmologist?

View a short clip of Dr. Coster restoring sight to one of the many Shar Peis rescued by the MSPCA-Angell in January 2013. Visit Dr. Coster’s Facebook page for more Ophthalmology information and tips.


Angell Animal Medical Center
350 S. Huntington Ave
Boston, MA 02130

Phone: 617-541-5095
Email: ophthalmology@angell.org
Fax: 617-989-1647


Monday 8:00 a.m. – 5 p.m. (extended evening hours on select Mondays)
Tuesday 8:00 a.m. – 5 p.m.
Wednesday 8:00 a.m. – 5 p.m.
Thursday 8:00 a.m. – 5 p.m. (extended evening hours on select Thursdays)
Friday 8:00 a.m. – 5 p.m.
Saturdays 8 a.m.– 12 p.m. (every other week)

Ophthalmology Team

Ophthalmology Team

Meet the Ophthalmology Team

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If you have any questions please contact Rachael Donnelly at the:

Referral line: 617-541-5095, or
Referral fax: 617-989-1647.

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Our Services

  • Diagnostic, therapeutic, and surgical services using advanced techniques, state-of-the-art equipment and up-to-date knowledge.
  • Complete ophthalmic examinations include slit-lamp biomicroscopy, indirect ophthalmoscopy, and standard in-office diagnostic tests including tonometry and gonioscopy.
  • Emergency and critical care service is available 24 hours, 7 days a week.
  • Urgent care consultations with ophthalmology are available, often the same day.
  • Available ophthalmic specialty services include cataract surgery with intraocular lens implantation, ocular ultrasound, electroretinography, cryosurgery, glaucoma surgery including laser cyclophotocoagulation, corneal surgery including grafting, and eyelid surgery.
  • CERF examinations are available for breeding dogs.
  • Board-certified specialists in internal medicine, radiology, cardiology, oncology, surgery, dermatology, dentistry, pathology, and exotic animal medicine assist in providing in-depth case management.
  • 24-hour Intensive Care Unit for patients needing intensive ocular therapy.
  • In-house CT and MRI scanners, specifically-designed for veterinary patients, are available Monday through Friday.