👉 Squinacy is a medical condition that affects the eyes. It can be caused by various factors such as infections, trauma, or genetic conditions. The main symptom of squinacy is double vision, which occurs when one eye is blocked completely from sight due to the other eye being affected. This can lead to difficulty in reading and seeing small objects around them. If left untreated, squinacy may progress to glaucoma, a serious condition that can cause blindness if not treated promptly.