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Training and technology to ensure healthy vision with personalized eye care for the entire family.


Premier medical and surgical eye care from a specialized team of board-certified ophthalmologists.


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Grene Vision Group - Total Eye Care for the Entire Family

What Is Macular Degeneration?

Alan R. Hromas, MD, a vitreous and retina specialist at Grene Vision Group, explains what Age-Related Macular Degeneration (AMD) is, the risk factors and treatment. AMD is the leading cause of blindness among older Americans, but new treatments have dramatically changed the course of this disease over the last 10 years, making AMD more manageable than ever before.

What Are Cataracts?

Cataracts are one of the leading causes of blindness in the world, but modern cataract surgery usually can restore vision lost to cataracts — and often can reduce your dependence on eyeglasses as well. Terria L. Winn, MD, Grene Vision Group ophthalmologist and cataract surgeon, explains what a cataract is, the symptoms, risk factors and treatment.


Double vision is when a person sees a double image where there should only be one. The two images can be side by side, one on top of the other, or both. If double vision affects just one eye, it is monocular. If it affects both eyes, it is binocular. Treatments depend on the cause and type, but they include eye exercises, specially designed glasses and surgery. Michele M. Riggins, MD, Grene Vision Group neuro-ophthalmologist, explains what double vision is, the causes and treatments.

Community & Company News

Retina Specialist Joins Grene Vision Group

Grene Vision Group welcomes Wichita native Diana M. Leitner, MD. Dr. Leitner i… Read Article


GVG Major Sponsor for Let's Move Kansas

Grene Vision Group is the Platinum Sponsor for the sixth annual “Let&rsqu… Read Article


GVG Ophthalmologists Named Best Doctors®

Dasa V. Gangadhar, MD, and Samuel W. Amstutz, MD, Grene Vision Group ophth… Read Article

Video Library

Video Library

Browse our various videos to find out what kind of services may best fit your needs. Our videos include information on various testing and treatment options, general health information, fun facts and more.

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"Never Miss A Moment"

Make sure you are seeing well, so that you never miss a moment. Grene Vision Group prides itself on being a leader in primary, medical and surgical eye care. Our eye care "team" is unique and focused on providing tri-ophthalmic care with the 3 Os: Optometry, Ophthalmology and Opticianry. Our 13 ophthalmologists, 37 optometrists and nearly 350 opticians, technicians and support staff are dedicated to providing Total Eye Care and Eyewear for the Entire Family in Andover, Anthony, Augusta, Buhler, Derby, El Dorado, Fredonia, Hutchinson, Lyons, Neodesha, Wellington, Wichita, Winfield and Yates Center, Our 50 eye doctors work in 21 convenient clinics, 22 optical departments and 12 medical and surgical satellite clinics and outreach programs throughout Kansas. Our doctor-owned eye group is one of the largest in the United States and is dedicated to providing world-class eye care in Kansas.