What is true about the procedures and criteria during rescreening compared to the first screening?

The procedures and criteria during rescreening are identical to those used during the first screening. This consistency is crucial to ensure that any changes in a patient's visual health are accurately assessed under the same standards and conditions. Maintaining the same procedures and criteria helps to ensure reliability and comparability of results, which is essential in identifying any visual impairment or changes that may have occurred since the first screening. This uniformity also ensures that any necessary interventions can be based on consistent and comparable data, allowing for an effective follow-up on initial findings.