What is the primary purpose of eye protection gear in welding?

The primary purpose of eye protection gear in welding is to protect from UV radiation. During the welding process, intense ultraviolet (UV) light is emitted, which can cause serious eye damage, such as "welder's flash" or photokeratitis. This condition is akin to having a sunburned cornea and can result in temporary blindness and significant pain. Eye protection gear, such as welding goggles or masks with appropriate filters, is specifically designed to block harmful UV rays, thereby safeguarding the welder's eyes from potential injury while allowing enough visibility to perform the work effectively.

While other options address important aspects of eye safety, they do not encapsulate the primary risk that welding poses to the eyes. Burns can occur from hot metal or sparks, but the acute danger from UV exposure is a more specific and critical concern, making it a top priority in eye safety during welding operations.