Which feature is beneficial for prescription lenses to enhance relaxation and reduce eye strain?

The feature that is beneficial for prescription lenses to enhance relaxation and reduce eye strain is blue light filtering. These lenses are designed to block or absorb a portion of blue light emitted from digital screens and artificial lighting, which can contribute to digital eye strain and discomfort during extended screen time. By reducing blue light exposure, these lenses help minimize the potential for eye fatigue, improve visual comfort, and enhance overall relaxation for the user, making them particularly advantageous for individuals who spend significant amounts of time in front of screens.

Lightweight frames are important for comfort but do not directly impact the relaxation of the eyes or the strain caused by light exposure. Polycarbonate material offers durability and impact resistance, which are valuable features for eyewear, especially for children or active adults, but again, it does not directly address eye strain related to light exposure. The photochromic reaction provides lenses that darken in response to sunlight, which can enhance visual comfort outdoors but does not specifically target the issue of digital eye strain indoors. Thus, blue light filtering is the most relevant feature for enhancing relaxation and reducing eye strain in the context of prescription lenses.