Description of test Look up. Operator inserts the special filter paper in the lower part of each eye. Paper is left in place for 5 minutes. Don't squeeze or rub eyes. Strip is removed.
Test is repeated on the other eye.
If a topical anesthetic is used, don't rub your eyes for at least 30 minutes because rubbing can cause a corneal abrasion. Activity after test If you wear contact lenses, do not reinsert them for at least 2 hours after the test. Return to pretest activities right away. Time before test results available Immediate. Test results Test Values Test results are determined by examiner's interpretation.