People with convergence excess have difficult in focus. the eyes do not exactly aim together; rather, they aim too close or in front of the object.For example, some people may find their noses always in front of visual field. As a consequence, blur, confusion or fatigue may result.
People with convergence excess can easily get eyestrain, headaches, blurred vision, double vision and sleepiness when they are doing close work. Some children may move their book closer or forward to see better, when in fact what they are doing is trying to relieve their convergence excess difficulties.
The symptoms of convergence excess might be eyestrain and headaches when reading, blurred vision, occasional double vision, poor attention and concentration when reading, and difficulty with reading comprehension. So convergence excess can affect near work tasks, especially reading and writing. People who have got convergence excess should see a doctor as soon as possible so that they can get treatment as early as they can.