Introduction: Asthenopic symptoms associated with convergence insufficiency (CI) may compromise a person’s ability to work or study. We investigated the effectiveness of orthoptic exercises in relieving symptoms related to CI and long–time results in children. Methods: The data were retrospectively gathered from the patient clinical files. A total of 100 patients met the inclusion criteria of suffering asthenopic symptoms and CI. Results: The mean age was 14 years, 69% of them were female and 31% are males . The patients (N = 100) suffered from CI and had at least one of the following symptoms: eyestrain, blurring of vision, problems in reading and while doing work–up at close distance or headache. After regular orthoptic exercises NPC is significantly decreased. Conclusions: In conclusion orthoptic exercises are effective in relieving asthenopic symptoms in children. The effects of orthoptic exercises on NPC  in children is better with time and not dependent on the number of visits needed for successful outcome. With orthoptic exercises it is possible to achieve longstanding relief on the symptoms of CI.