Employing a narrow reading of the recent Supreme Court cases on defining disabilities, a federal judge has held that corrective measures — such as medication or eyeglasses — act as a bar to filing suit under the Americans with Disabilities Act only when they “fully control” a person’s impairment.

In some cases, Senior U.S. District Judge Thomas N. O’Neill said, the plaintiff cannot meet the ADA’s definition of “person with a disability” since the corrective measure eliminates all substantial impairments, such as eyeglasses that restore a person to 20/20 vision.