The aircrew member then returned to base, and visited the flight medicine office prior to return to flying status. Method Aircrew members who received new spectacles turned in their used spectacles to the optometry clinic. Optometry personnel inspected the used lenses for defects, verified and marked the prescription, and sorted the lenses by power. Where possible, a loaner pair of spectacles constructed from the used lenses was issued to any aircrew member identified DNIF for vision deficiencies correctable by lenses. If the aircrew member met visual standards with the loaner spectacles, no DNIF action resulted while processing the new spectacles through the usual source.
Inspectors identify potential best practices during the inspection process.
Further research upon return from the field determines if inclusion into the final report is appropriate.