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Dec 2, 2020 · Convergence insufficiency is a common vision disorder in which a person's eyes tend to drift outwards when they try to use their eyes together up close. This can cause eye strain, headaches, blurred and double vision. When reading, people with convergence insufficiency frequently lose their place or have to re‐read text.
Convergence insufficiency (CI) is a condition where you are unable to fully move your eyes together towards the nose (converge). Why do I need to be able to converge? Convergence is needed in order to be able to focus clearly on a near object (such as print in a book).
Convergence Insufficiency is a common problem with the development of these skills. When convergence is insufficient, it means that the eyes do not come together closely enough when looking at a near object (dashed lines in above image), so the eyes are essentially looking "past" the target focal point (orange lines).
Convergence Insufficiency (CI) is a syndrome characterized by a decreased ability to converge the eyes and maintain binocular fusion while focusing on a near target. CI is usually accompanied by a reduced near point of convergence (NPC), decreased convergence amplitudes or an exodeviation (usually > 10 prism diopters) at near.
is called Convergence Insufficiency. What Causes Convergence Insufficiency? There are many different causes but the possibilities include a change of occupation involving increased close work, an intensive period of close work (e.g. studying for exams), over work, worry, recent illness or whiplash. Sometimes no reason is found.
Convergence insufficiency (CI) is a common binocular vision (BV) disorder characterized by difficulty in maintaining motor fusion at near, which affects approximately 7.5 percent of the population. Diagnostic criteria for the disorder are inconsistent, ranging from one to many clinical signs. Methodology for clinical tests is inconsistent in ...
Aug 8, 2021 · The #1 cause of convergence insufficiency is an eye muscle weakness known as exophoria. This condition is caused when the eyes have a tendency to drift outward, meaning the eyes need to work harder to focus on a book or a computer screen. Difficulties with convergence eventually results in the eyes becoming tired, leading to loss of attention ...
