Janis V. Gong, O.D.

Janis V. Gong

Dr. Gong is a 4th generation Californian born and raised in Visalia, CA. She attended the University of California at Berkeley receiving her Bachelor of Optometry and Doctor of Optometry degrees. After graduation, she taught and lectured at the University of California Berkeley School of Optometry for 20 years in the pre-clinic course as well as binocular vision and pediatrics.

Dr. Gong has been in private practice in Los Gatos since 1973 and very happy to continue seeing patients from that first year. She was joined in the office by her husband, Dr. Kenneth Sweeney, in 1983 and they have enjoyed a complementary optometric partnership ever since. Her emphasis is family eyecare specializing in pediatrics and binocular vision.

Dr. Gong and Dr. Sweeney have two sons. She is an avid Giants fan, loves good food, and Broadway shows. She spends time with her family, friends, yoga and reading good books.


Kenneth E. Sweeney, O.D.

Kenneth E. Sweeney

Dr. Sweeney was born in San Francisco and raised in Moraga and Fresno. He attended UCLA earning a Bachelor of Arts degree in Economics before attending UC Berkeley School of Optometry. At UC Berkeley, he obtained a Bachelor of Optometry and his Doctorate of Optometry.

In his final year at UC Berkeley, Dr. Sweeney was involved in extended wear contact lens research and lens design at CooperVision Optics in San Jose. After graduation, he continued his work at CooperVision until he joined his wife, Dr. Janis Gong, in private practice in 1983. Dr. Sweeney has a special interest in contact lenses but also enjoys providing comprehensive family eyecare including the treatment of eye diseases and refractive surgery co-management.

When Dr. Sweeney is not working, he likes to travel and spend time with his family. He also enjoys gardening and taking motorcycle trips.


Timothy S. Coughlin, O.D., F.A.A.O.

Timothy S. Coughlin

Dr. Coughlin attended U.C. Berkeley, where he majored in Bacteriology/Immunology, completing the honors program in the major. At U.C. School of Optometry he graduated president of his class in 1975. Dr. Coughlin has been on the faculty of the School where he taught clinical Optometry for many years. He became a fellow of the American Academy of Optometry in 1983.

Tim is an active member of Lions in Sight, bringing vision care to rural villages in Mexico. He is also a member of Los Medicos Voladores, Flying Doctors and donates time to provide vision care to migrant laborers in California. He has served as president of the Santa Clara County Optometric Society.

Dr. Coughlin has served as president of the Los Gatos Kiwanis Club, and was chair of the Town of Los Gatos Community Services Commission.

Dr. C is married and has two grown children and two grandsons with whom he spends as much time as possible. He enjoys mountain biking, backpacking and woodworking.


Jeremy Chin, O.D.

Jeremy Chin, O.D.

Dr. Chin was born and raised in Oakland. He earned his Bachelor of Arts degree in Business Economics at UCLA, and worked as an actuarial consultant before attending optometry school. Dr. Chin earned his Doctorate of Optometry at the UC Berkeley School of Optometry, where he served as a graduate student instructor for various optometry courses and conducted Vision Science research. His research findings were published in the Optometry and Vision Science Journal, and presented at a national meeting of the American Academy of Optometry.

Dr. Chin enjoys providing comprehensive eye care with an emphasis on ocular disease, including glaucoma, macular degeneration, and diabetic retinopathy.

In his free time, Dr. Chin can be found on the tennis court, playing strategic board games, and spending time with his wife and daughter.


Marianne Sunseri, Office Manager

Marianne Sunseri

Marianne started working for the doctors in 1995 as their receptionist and is now their Office Manager. She truly enjoys customer service and has loved getting to know our patients over the years. Her job consists of everything from insurance billing and accounting to general office duties, as well as overseeing the rest of the staff. Marianne was born and raised in Southern California and moved to the Bay Area in 1982 after meeting her husband at Cal Poly, SLO. In her spare time she enjoys reading, cooking and collecting recipes. She also loves spending time with her husband, 2 daughters and their Maltese, Toby.