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According to WebMD, "There are doctors who may recommend eye exercise for eyestrain, blurred vision, headaches, increased sensitivity to bright light, tired eyes, or difficulty sustaining attention."
The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They may include, but are not limited to, diplopia (double vision), asthenopia (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, headache, and abnormal postural adaptation, among others.
Eye patches may strengthen the weaker eye but fail to stimulate binocular vision and stereopsis, which may sometimes be recovered by different means. Stereopsis recovery , also recovery from stereoblindness , is the phenomenon of a stereoblind person gaining partial or full ability of stereo vision ( stereopsis ).
Frederick Brock made many contributions to vision therapy, and his work focussed mainly on the application of vision training to the diagnosis and therapy of binocular dysfunction. [1] Brock trained his patients with rich stereo images which closely resembled the natural environment, and favored these over the use of (simplified) stereographs. [2]
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Binocular vision anomalies include: diplopia (double vision), visual confusion (the perception of two different images superimposed onto the same space), suppression (where the brain ignores all or part of one eye's visual field), horror fusionis (an active avoidance of fusion by eye misalignment), and anomalous retinal correspondence (where ...
Binocular Vision Disorders: These are issues with how the eyes work together, such as strabismus (eye misalignment) or convergence insufficiency (difficulty bringing the eyes together to focus on near objects). Amblyopia (Lazy Eye): Behavioral optometrists may provide therapy and treatments to improve vision in individuals with amblyopia.
Wearing the device encourages or forces the alternating use of both eyes, similar to eye patching, but rapidly alternating in time. The aim is to circumvent the tendency to suppress the field of view of the weaker eye and to train the capacity for binocular vision. Traditionally, eye patches are used to block the field of view of one eye.