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Meet Our Optometrists

Since its inception 40 years ago, Londonderry Eye Care has employed some of the finest optometrists in Edmonton. We understand that choosing an eye doctor in Edmonton is an important health care decision, and we aim to make it easier by providing professional consultation and friendly customer service in a convenient location—the Londonderry mall. Our doctors and staff put the customer first, always, and we’re available seven days a week to take care of you.

Our Edmonton opticians are experienced and highly qualified. Of the seven doctors at Londonderry Eye Care, all are educated experts in their field with qualifications from some of the finest institutions in the United States and Canada. Each of them carries a unique background and history that contributes to their compassionate attitude toward patient care. We are confident that our distinguished doctors will provide you and your family with a lifetime of kind, professional care.

When you visit an Edmonton eye doctor at Londonderry Eye Care, you deserve personal attention and individualized treatment. We’re proud to say that all of our eye doctors in Edmonton share this vision. You can count on us to always make your needs our top priority. We want to make sure that you have access to the professional eye care available in Edmonton. Optometrists, no matter how much experience and education they have, should always be striving to advance their understanding in the field of eye care, especially when it comes to their patients. That’s the level of service we strive to provide here in our offices.

As you review the credentials for each of our outstanding optometrists, you can take comfort in their dedicated service towards the advancement of eye care and our community’s needs. With a healthy blend of experienced and new optometrists, we are able to maintain high quality standards within our offices and stay up-to-date on the latest advancements in our field. Here at Londonderry Eye Care, there is no greater accomplishment for us than to ensure that your eyes are being taken care of. If you are experiencing any problems with your vision, or you simply need a check-up, we are more than happy to help you. Don’t hesitate to give us a call at any time, 780–476-7631, or book your exam online today!

Dr. Richard A. Riep

Dr. Riep obtained his Doctor of Optometry degree from the University of Waterloo, Ontario, in 1968. He has dedicated over 40 years to serving his patients in Edmonton and area. He enjoys all aspects of family optometric care, but has a particular interest in geriatric care. Dr. Riep has been actively involved in the community, serving on the Board and participating in fundraising events for the Evelyn Unger School for Learning Disabilities; held many positions in several Lutheran churches; elected to the position of Mayor in the Summer Village of Birch Cove; and devoted many hours to community league activities. Dr. Riep is a family man and loves spending time with his wife, Sylvia, three children and four grandchildren.


Dr. Tony Mann

optometrists in edmonton Dr. Mann graduated in 1993 with a Bachelors degree in Computer Science from the University of Alberta, and subsequently with a Doctor of Optometry in 1998 from the New England College of Optometry. He joined Londonderry Eye Care in July 1998. The most rewarding part of his job is his interaction with his patients. After eleven years, he has gotten to know many of them on a personal level. As well, he realizes the magnitude of responsibility in caring for the wellbeing of his patients’ eyes. With the aging population and advancements in medical science, it will become more imperative for optometrists to educate their patients and provide them with superior care. Dr. Mann welcomes this challenge. He is also the proud father of two boys, who are the apples of his eyes, and gives his life meaning. His hobbies include reading, travelling, sports, and music.


Dr. Rina K. Singh

Dr. Singh received her degree in optometry from the New England College of Optometry, in Boston, Massachusetts. She completed her training with internships at Manchester Medical VA hospital in Manchester, New Hampshire and University of Maryland: Department of Ophthalmology and Visual Science in Baltimore, Maryland. As well, she completed internships at Wenzhou Medical College: Eye Hospital in Wenzhou, China and at the South Boston Community Health Center in Boston, Massachusetts. She has had the privilege of volunteering by providing examinations, glasses and treatment for under-served populations in the Dominican Republic and in the greater Boston community. Dr. Singh is proficient in fitting specialized contact lenses, including keratoconic and multifocal lenses. She has a special interest in family practice, ocular disease, glaucoma co-management, postoperative care, pediatric and diabetic eye care. She is fluent in English, Punjabi and Hindi.


Dr. Ruby Mangat

Dr. Mangat obtained her bachelor degree in Cell and Molecular Biology at Simon Fraser University in 2004 and then proceeded on
to get her Doctor of Optometry at New England College of Optometry in 2008. Dr Mangat is a member of both the Alberta Association of Optometrists as well as Canadian Association of Optometrists and has completed externships in ocular pathology for conditions such as macular degeneration and glaucoma at East Boston Medical centre as well as low vision at Jamaica Plain VA centre. In addition, she has also completed externship for specialty contact lens fitting for patients with high astigmatism, presbyopia and post-surgical cases at New England Eye Centre. Dr Mangat has also volunteered within the greater Boston area, providing eye examinations, glasses, and treatment for the under-served population. Dr Mangat has a vast experience with patients from different age groups and backgrounds. She is also fluent in both Punjabi and Hindi. In her spare time, she enjoys spending time outdoors with her family biking as well as playing soccer.


Dr. Khaldoun Ramahi

A native of Edmonton, Dr. Ramahi attended the University of Alberta where he graduated with honours with a Bachelor of Science. Dr. Ramahi then pursued his graduate studies at InterAmerican University where he earned his Doctor of Optometry degree with honours. Dr. Ramahi has earned several academic awards in the duration of his studies including awards for clinical excellence, several academic scholarships, and being inducted into the optometric honours society Kappa Beta Sigma. The well-being of his patients is Dr. Ramahi’s greatest reward and his enthusiasm for what he does is obvious to his patients in the exam room. On his time off, Dr. Ramahi enjoys movies, hockey, travelling, and spending time with family and friends.


Dr. Sarah Chin

Dr. Chin obtained both her Bachelor of Science degree and Doctorate of Optometry with Distinction from Pacific University College of Optometry in Forest Grove, Oregon. As part of her clinical experience, she managed and treated ocular diseases at Jonathan M. Wainwright Memorial VA Medical Center in Washington state; provided comprehensive eye care at Family Vision Care in Edmonton and Landstuhl Regional Medical Center in Germany; and co-managed pre and post-operative cataract patients at a private practice in Lake Havasu City, Arizona. Dr. Chin enjoys being able to serve those who do not have readily accessible eye care and has previously volunteered with Amigos Eyecare on an eye healthcare mission to Nicaragua. She hopes to continue her volunteer service with more trips in the future.

Dr. Chin was born and raised in Edmonton. Her hobbies include photography, traveling, and hiking. She is fluent in English & Cantonese.