Which statement about UV safety is true?

• A. UV is harmless to eyes
• B. UV exposure can burn the retina
• C. UV exposure has no health risks
• D. UV is beneficial in all scenarios

Answer: (B)

UV safety centers on recognizing that ultraviolet radiation is hazardous to the eyes. Ultraviolet light can cause serious eye injuries, especially when the exposure is intense or unfiltered. While the cornea and lens are commonly affected first—leading to pain, redness, and temporary vision issues—a very bright UV source can reach the retina and cause photochemical damage, sometimes described as burning the retina. This is why proper eye protection is essential, such as UV-blocking safety glasses or goggles and ensuring UV lamps are enclosed or shielded with interlocks. In wastewater work, UV-C disinfection lamps are particularly hazardous if viewed directly or if protective housings are opened, so never look directly at the lamp and always use appropriate shielding and safety gear.