My husband has daily eye vision issues. He alternates between his regular prescription glasses, prescription reading glasses and over the counter reading glasses. Some days he does better not using anything at all! In addition to the chemo & radiation he had for his esophageal cancer he also had radiation and hormone deprivation therapy for prostate cancer. He read that low to no testosterone can affect vision so we're not sure where his vision problems stem from but it's frustrating to say the least.