My April blog, "A Fishy Situation," described my first eye appointment with Dr. Seddon, a vitreoretinal specialist and Director of Ophthalmic Epidemiology & Genetics Service at Tufts New England Eye Center in Boston.I felt she was best prepared to address my biggest post-treatment concern: how to manage the radiation retinopathy in my right eye which mimics the damaging effects of macular degeneration, her area of expertise.
Dr. Seddon led the center in Massachusetts for the National Eye Institute’s Age-Related Macular Degeneration Study (AREDS 1992-1998), a clinical trial that showed that high levels of antioxidants and zinc significantly reduce the risk of advanced age-related macular degeneration (AMD), the leading cause of irreversible blindness in people 50 years or older in the developed world. She recently published a follow-up study with AREDS participants that found “an individual’s response to AREDS supplements may be related to their genotype.”
In other words, your genetic make-up could determine whether or not you will respond to the nutritional oral supplements beneficial to AMD treatment.
Essentially, the first AREDS trial proved what provides the benefits against AMD (zinc, beta-carotene, Vitamin C/E) while the second trial proved who derives the benefit (individuals with the CFH genotype).
Welcome to the era of personalized medicine in which even your nutritional therapy is determined by the ingredients in your genetic soup.
Radiation retinopathy presents the same vision loss as AMD, due to blood vessel leakage and inflammation, although for much different reasons. To offset the radiation damage, I have been taking 3600 mgs of fish oil (omega-3) daily since my treatment for choroidal melanoma three years ago.
Contrary to clinical expectations, while I no longer have sharp, correctable center vision, I still enjoy a full visual field and my retinopathy has stabilized. So, during my appointment with Dr. Seddon last Friday, we discussed phase two of my post-treatment plan: protecting the vision in my healthy left eye.
As a result, I have added PreserVision to my daily supplement dosing. Research may never target the visual concerns of the post-treatment eye cancer (also called uveal melanoma, choroidal melanoma, eye melanoma, ocular melanoma, intraocular melanoma and ciliary body melanoma) community. Yet, the results of the previous and current supplement trials (AREDS2) may be interpreted to hold potential benefits for some of us, too.
There's no down side to supplements (always consult your eye doctor), and they just may help. Medicine that does no harm. Always the first choice of care.





