Sunglasses are an important piece of protective equipment in the cockpit environment. Evidence indicates that a proportion of airline cockpit windshields transmit some ultraviolet (UV) radiation.
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Yes of course, they wear it while flying also. Not only fighter pilots, it is even worn by other aviators(pilots) also. This is because of the UV protection and anti-glaring properties of these glasses. Glaring can effect pilot's vision and hamper reading the instruments.
A lens material that blocks UV or a UV blocking coating is recommended for pilots. There is no evidence that blue light hazard exposure in flight is such that blue light hazard filters or coatings are required. High index lenses are recommended for stronger spectacle prescriptions.
The standard test for color blindness is the Ishihara test, which has been in use since the 1960s. Note that (for the FAA at least) the use of any form of color-correcting lenses is not permitted. The Ishihara test involves reading numbers from a series of colored test plates or cards.
To hold a first or second-class medal certificate, Federal Aviation Regulations require a pilot's vision to be 20/20 or better, with or without correction, in each eye. The standard for near visual acuity is typically 20/40.
Due to the risks to flight safety posed by ADHD, regulatory authorities worldwide consider ADHD a disqualifying condition for pilots. Unfortunately, pilots sometimes fail to disclose ADHD to their Aviation Medical Examiner (AME).
Most airlines have a similar policy when it comes to tattoos. They allow pilot tattoos as long as they are not visible while on duty and do not contain any offensive content. This means that any tattoos on the hands, neck, or face must be covered up while on duty.
Many airlines provide crew rest areas on their aircraft, where pilots can sleep during long-haul flights. These areas are usually located in the tail, cargo area or above the cabin of the plane and are designed to be as quiet and comfortable as possible. Other crew members prefer to use business class seats to rest.
Flight crew, pilots, and ground crew will be permitted to wear clothing they feel best represents them, regardless of their gender, gender identity, or gender expression, according to Virgin Atlantic.