(CNN) — Their daughter Mia was just three several years outdated when Canadian couple Edith Lemay and Sebastien Pelletier first observed that she was getting eyesight issues. A few a long time following they initial took her to see a specialist, Mia, the eldest of their 4 kids, was diagnosed with retinitis pigmentosa, a unusual genetic affliction that triggers a reduction or drop in eyesight around time. By this point, Lemay and Pelletier, who’ve been married for 12 decades, had noticed that two of their sons, Colin, now 7, and Laurent, now five, were being experiencing the identical signs and symptoms. Their fears were being confirmed when in 2019 the…