What are the consequences of flying with untreated vision impairments?

Flying with untreated vision impairments significantly increases the risk of navigation errors. Pilots rely heavily on visual acuity to interpret navigational aids, read instruments, and visually scan the environment for other aircraft, terrain, and weather conditions. A compromised ability to see clearly can lead to misinterpretation of vital information, delayed reactions, and an overall failure to maintain situational awareness, which are critical for safe flight operations.

For example, poor vision may hinder a pilot's ability to read critical altimeter or heading information, notice airspace boundaries, or identify other aircraft in the vicinity, which can all lead to dangerous flying situations. Ensuring optimal vision is essential for effective navigation and maintaining safety in the cockpit.