Treatment of strabismic or anisometropic<unk>  consists of correcting the optical deficit (wearing the necessary spectacle prescription) and often forcing use of the<unk>  eye, by patching the good eye, or instilling topical atropine in the good eye, or both. Atropine appears to result in similar outcomes to patching. If there is overpatching or overpenalizing the good eye when treating<unk> , "reverse<unk> " can result. Eye patching is usually done on a part-time schedule of about 4–6 hours a day. Treatment is continued as long as vision improves. It is not worthwhile continuing to patch for more than 6 months if no improvement continues. Deprivation<unk>  is treated by removing the opacity as soon as possible followed by patching or penalizing the good eye to encourage the use of the<unk>  eye. The earlier the treatment is initiated, the easier and faster the treatment is and the less psychologically damaging. Also, the chance of achieving 20/20 vision is greater if treatment is initiated early. One of the German public health insurance providers, Barmer, has changed its policy to cover, as of 1 April 2014, the cost of software for<unk>  children whose condition did not improve through patching. The app offers dedicated eye exercises that the patient performs while wearing an eyepatch. Evidence for vision therapy is unclear as of 2011. Older age Treatment of individuals age 9 through to adulthood is possible through applied perceptual learning. Tentative evidence shows that perceptual training may be beneficial in adults.
Amblyopia
Optic nerve
Ectopia 
Brainstem
Myopia
Eye disease
Nyctalopia
Far-sightedness