This is what convergence insufficiency looks like (thanks to the VisionHelp Blog):
People with convergence insufficiency may still see 20/20 when measured using a standard eye chart and basic vision screenings that are done in schools and pediatrician offices.
However, what the eye chart does not measure is how their eyes move and work together when doing work close up. That’s why convergence insufficiency is so often missed. Convergence insufficiency is a treatable condition where the eyes do not move together properly, or converge, when doing close work such as reading. The result can be blurry vision, double vision, visual fatigue and other symptoms. A developmental optometrist usually tests and measures a patient’s convergence abilities. A landmark study by the National Eye Institute found that in-office vision therapy was the best treatment for convergence insufficiency.
For more information on convergence insufficiency, visit www.convergenceinsufficiency.ca
To find a developmental optometrist near your, visit www.covd.org.