Optical Glass or Plastic Lens Magnifiers? OptiVISOR -v- Inexpensive Imports Looking through optical glass is generally considered superior to cheap plastic lenses due to several key factors that contribute to the overall visual experience and eye health. Here are some reasons why optical glass is often preferred: 1. Optical Clarity: Optical glass provides superior clarity compared to cheap plastic lenses. The manufacturing process of optical glass involves precise techniques that result in a more optically pure material. This reduces distortions, aberrations, and visual artifacts, offering a clearer and sharper image. 2. Index of Refraction: Optical glass typically has a higher index of refraction than plastic, which means it can bend light more efficiently. This property allows for thinner lens profiles while maintaining the same optical power, resulting in more aesthetically pleasing and lightweight eyewear. 3. Durability: Optical glass is generally more scratch-resistant and durable than cheap plastic lenses. This durability helps maintain the optical quality over time, ensuring that the lenses remain clear and free from scratches that can degrade visual performance. 4. Resistance to Environmental Factors: Optical glass is more resistant to environmental factors such as UV radiation, temperature changes, and chemical exposure. This resistance helps prevent the degradation of lens properties over time, ensuring a longer lifespan for the eyewear. 5. Color Accuracy: Optical glass tends to provide better color accuracy and consistency compared to cheap plastic lenses. This is crucial for activities such as jewelry design, photography or professions where color perception is essential. 6. Aberration Control: High-quality optical glass lenses are designed to control various optical aberrations, such as chromatic aberration and spherical aberration, resulting in better image quality and reduced eye strain. 7. Light Transmission: Optical glass has a higher light transmission rate compared to some plastics. This means that more light reaches the eyes, improving vision in low-light conditions and enhancing overall visual comfort. While optical glass may be associated with higher costs, the benefits it offers in terms of optical quality, durability, and overall visual experience often make it a preferred choice for those seeking the best possible eyewear. However, it's important to note that advancements in lens technology have also improved the quality of some plastic lenses, and high-quality optical plastics can offer a good balance between performance and affordability.