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according to family legend, a rare genetic eye disease passed down through several generations had ended. so that’s what victoria mcfarlane believed. she wasn’t a carrier and her kids would never get choroideremia.
this inherited retinol disease (ird) causes progressive vision loss and eventually complete blindness. victoria’s grandfather went blind from choroideremia and that’s how her eldest son felix, 13, remembers great grampy sitting in a chair and having everyone around him but not being able to see them. her son atticus, 12, was younger and can’t recall this as clearly.
“it never occurred to me that i could have inherited this disease from my grandfather or be a carrier,” the halifax mom and lawyer says. she started seeing some black spots in her line of vision a number of years ago, and testing confirmed that she does have a mild form of choroideremia and is a carrier. she learned that her kids had a 50-50 chance of having the disease—they had a 50-50 chance of going blind.
genetic testing detected choroideremia, which leads to blindness
victoria and her husband, andrew, worked with the local children’s hospital to discuss the pros and cons of genetic testing and decided to go ahead. this was in 2019 when the boys were just eight and six.
“knowledge was power at this age and stage, even though at the time and currently, there’s no cure for choroideremia. if they had it, it would be important to know and to provide them with the community that they’re going to be a part of and to also hopefully advocate for a cure, which is where we are today.”
both boys were diagnosed with this ird, changing their life trajectory and leaving their parents with a sense of grief and guilt of not being able to provide them with the same life as their friends would likely have. their youngest child, daughter talia, 9, was not affected. about 21,000 canadians live with ird.