
REFRACTIVE VISION SPECIALIST & MEDICAL VITREO-RETINAL FELLOW
Born and raised amidst the natural beauty of Hawaii, Dr. Kellen Kashiwa brings a deeply rooted local perspective to his practice at the Eye Center of Hawaii. With over twelve years of dedicated service as an optometrist at ECH, Dr. Kashiwa is a cornerstone of the community’s ocular health sector.
Dr. Kashiwa graduated with a Doctor of Optometry Degree from the Pacific University College of Optometry in Oregon. His academic focus was on low vision and retinal diseases, equipping him with specialized expertise in managing visual impairments that conventional methods cannot correct. His training encompasses the comprehensive examination and treatment planning for patients requiring tailored visual aids.
Prior to joining the Eye Center of Hawai’i, Dr. Kashiwa honed his skills at the Retina Institute of Hawaii, where he served as a technician and diagnostic photographer from 2008 to 2009. His international experience includes internships in Japan and China, enhancing his clinical skills with a global perspective.
Dr. Kashiwa is also committed to humanitarian efforts, having treated over 5000 patients in optometric missions across the Philippines, Peru, Nicaragua, Thailand, and Tanzania. In his spare time he does volunteer keiki vision assessment at homeless shelters and free diabetic retinal screenings throughout Hawaii. His dedication to improving vision transcends borders, making him not only a valued local optometrist but also a global vision care advocate.
Dr. Kashiwa is a clinical professor at Pacific University College of Optometry and University of Missouri College of Optometry. He has given lectures on topics including dry eye disease and sports vision therapy and consults with contact lens companies on sports training technologies. He also works with our local athletes to improve their vision including University of Hawaii athletics, MLB, NFL, and UFC athletes.
Dr. Kashiwa’s approach to eye care is informed by a blend of advanced medical training and a profound connection to his local roots, making him a trusted healthcare provider and community leader in Hawai’i.



Your eyes work hard every day, make sure they’re protected year-round! Visit our Kona, Kauai, and Kailua optical locations where our opticians can help you find frames and lenses that fit your lifestyle, vision needs, and budget. 🕶️ ... See MoreSee Less
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Glaucoma is often called the “silent thief of sight” because it can steal your vision slowly without you noticing. It usually starts with your peripheral vision, and by the time symptoms appear, some damage may already be done. Regular eye exams are the best way to catch it early and protect your sight for the years ahead. ... See MoreSee Less
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Our eyes have natural blind spots where the optic nerve connects to the retina, but you probably never notice them. That’s because your brain fills in the missing information, stitching together glimpses from your eyes into a complete picture! #FunFactFriday ... See MoreSee Less
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As we get older, it’s common for the eye’s natural lens to become cloudy. Cataracts can slowly make colors seem duller and everyday activities like reading or driving more difficult. The good news is that today’s cataract surgery can restore clearer vision and help you get back to the things you enjoy most. Schedule an exam to learn about your options. 👁️ ... See MoreSee Less
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Macular degeneration affects the part of your vision you rely on most for everyday tasks. It can make your vision blurry, dim, or distorted. If something in your central vision doesn’t seem quite right, it’s worth getting it checked.
Our team is here to help you protect your vision. Schedule an appointment to learn more! 📞 ... See MoreSee Less
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We are proud to welcome Dr. Elwishahi to our Waipahu office. Dr. Elwishahi is committed to improving the vision, health, and quality of life of Hawaiʻi’s communities through comprehensive, compassionate, and evidence-based eye care that is personalized to meet the unique needs of each patient. Call us today to schedule your exam! ... See MoreSee Less
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