Double vision is when you look at one object, but it appears as if you see two. It’s possible for it to affect either one or both eyes. It’s sometimes referred to as diplopia and isn’t usually serious, however it’s important that you get it checked by your Opticians, even if it comes and goes.
When both eyes (binocular) are affected it can indicate a squint, due to the muscles or nerves making the eyes look in slightly different directions.
This is more common in children but can also be present in adults, however, squinting in adults can possibly indicate a more serious issue. If you are experiencing squinting be sure to get it checked by your optician or GP.
If you have double vision, then it might be due to astigmatism or dry eyes, or due to more complex causes such as diabetes. The best course of action for double vision is to consult your optician or your GP. They’ll be able to advise you on the best course of treatment once they work out the cause.
Preventing double vision means preventing the underlying cause. Depending on the cause you might need to control your diabetes, keep your eyes healthy by refraining from smoking and by following a healthy diet, and soothing dry eyes.
If you experience double vision, you should book an appointment with your Optician or doctor at the earliest opportunity.