A blurry test pattern appeared on Maya’s spex. She ran her finger along the stem of the right eyepiece until the pattern focused and clarified. She pressed the nosebridge to bring the depth in. These were habitual gestures, little technical actions she’d been doing for decades, but she felt a sudden thrill. Her astigmatism was all gone. Her astigmatism was entirely cured, and until this instant she had never managed to miss it.