Convergence insufficiency is a functional vision condition where both eyes struggle to work together at near distances, causing strain, headaches, double vision, blurred vision, or difficulty maintaining focus during reading or computer work.
Some individuals may also experience convergence excess, where the eyes over-converge when focusing at near, leading to fatigue and visual discomfort. These eye teaming skills are learned visual abilities and can vary between individuals.
A Functional Vision Evaluation helps diagnose eye teaming disorders through specialised testing. Treatment may include customised lenses, structured vision therapy, and optometric syntonics phototherapy to improve eye coordination, visual comfort, and reading endurance.