is important to wear sunglasses under strong sunlight. The sun and artificial lights emit various wavelengths, including ultraviolet (UV) rays, visible light, and infrared radiation. Without proper eye protection during outdoor activities, these rays can cause significant harm to your eyes. Choosing the right pair of sunglasses suited to your activity is essential. The most basic requirement is that the lenses should offer UVA and UVB protection. Another key factor is lens color. Many people think the color is purely for aesthetics, but in reality, it's secondary. The main purpose of different lens colors is to filter light at varying levels, making them suitable for different environments and activities.