It’s a condition, recognized by the American Optometric Association, that affects users of computer monitors and causes eyestrain symptoms, such as blurred vision, dry or burning eyes, delayed focusing, and headaches. It can arise from failure of the eye muscles to work properly.

Also called orthoptics or vision training, it’s a treatment process for improving visual function including eye movement skills, accommodation and binocular vision. It involves a series of eye exercises of progressive difficulty, performed several times a week, until symptoms are resolved.

People who have eye muscle problems that cause eyestrain symptoms – such as blurred vision, headaches, fatigue or concentration difficulty – including computer vision syndrome and vision-related learning problems.

Our eyes were not made to fixate on two-dimensional written pages or computer screens for hours at a time. Our eyes are more geared for the distance vision primarily used by people in agrarian societies.

Usually, no. Once your eye muscles have been reeducated, they remember their new skills – and automatically use them all the time.

Usually, no. You don’t have a seeing problem, you have an eye muscle problem – that usually can’t be helped by eyeglasses alone.

That depends on how quickly your eye muscles learn the needed skills. Most people need to practice computerized HTS Home Vision Therapy Program for 20 minutes a day, five days a week, for about two to three months.

The ability of the eyes to focus clearly on objects at various distances.

The aiming of the eyes inwards towards an object.

The process by which what is seen separately, by each eye, is integrated into a single perception.

The ability to perceive relative depth — due to each eye having a different vantage point — commonly called 3D vision.