convergence insufficiency

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con·ver·gence in·suf·fi·cien·cy

that condition in which an exophoria or exotropia is more marked for near vision than for far vision.

con·ver·gence in·suf·fi·cien·cy

(kŏn-vĕr'jĕns in'sŭ-fish'ĕn-sē)
That condition in which an esophoria or esotropia is more marked for far vision than for near vision.
References in periodicals archive ?
The 15-question pencil-and-paper Convergence Insufficiency Symptoms Survey (CISS) questionnaire was completed during each data collection session by selecting the frequency of the particular near vision symptom (Figure 2).
On orthoptic examination, 27% patients had exophoria for near convergence, 50% had convergence insufficiency or decreased convergence amplitude, and 23% had esophoria [Table 10].
13% of fifth and sixth grade children examined during visual screening had the disorder of convergence insufficiency as did nearly 1 in 5(17.
The study by the NEI found that in-office vision therapy was the best treatment for one type of problem convergence insufficiency.
This is called convergence insufficiency, which can cause eye strain, headaches, blurred and double vision.
The Mayo Clinic in Rochester, Minnesota, does work with convergence insufficiency disorder.
According to two separate studies, there is a "high occurrence" of convergence insufficiency (CI), a vision disorder that causes the eyes to move outward, among children with attention-deficit/hyperactivity disorder (ADHD).
An NPC of greater than 8 cm was classified as convergence insufficiency (CI).

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