
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.



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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You blink about 14,000–19,000 times a day, spreading tears that protect, nourish, and keep your eyes comfortable. Blinking is one of your eyes’ most important defense systems.
But did you know, you may not be blinking right? You may not be fully closing your eyes, or blinking enough? It can be one of the causes of dry eye and one of the MANY things we check for in our comprehensive screening. It’s one of the reasons our dry eye team has so many happy and relieved patients!
#FridayFact ... See MoreSee Less
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Cataract surgery has come a long way.
Laser-assisted cataract surgery allows for greater precision, customization, and the ability to correct astigmatism — helping patients achieve clearer, more predictable results.
Advanced technology. Personalized vision.
Schedule your cataract exam today! ... See MoreSee Less
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🌺👁️Cataracts don’t just make vision blurry — they can make colors look dull and faded.
The natural lens of the eye becomes cloudy over time, muting the vibrant blues of the ocean, the greens of the mountains, and the bold colors all around our island.
Cataract surgery can restore clarity and bring those colors back to life.
Schedule your cataract exam with us today! ... See MoreSee Less
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