Safety recommendation
NTSB Recommends FAA Require Controllers to Wear Corrective Lenses for Specific Distances
The National Transportation Safety Board has issued a recommendation regarding visual corrective lenses for air traffic controllers.
The NTSB recommends that the Federal Aviation Administration require a controller to wear visual corrective lenses for specific distance ranges dictated by the tasks performed if visual corrective lenses are used to meet the standards for medical certification.
Original regulatory source: https://data.ntsb.gov/carol-main-public/sr-details/A-89-088