Relax lenses primarily work by providing a slight increase in lens power in the lower portion, which helps to relieve eyestrain, particularly during close-up tasks like reading or using digital devices.
Understanding Relax Lenses
Relax lenses are a type of spectacle lens designed to combat the effects of prolonged visual stress, often associated with extensive screen time or focused work. Unlike standard single-vision lenses, which have the same power across the entire lens, relax lenses incorporate a subtle difference in power.
The Core Mechanism
According to the provided reference, relax lenses:
- Relieve eyestrain by increasing the power in the lower part of the lens.
This means that when you look down through the lower section of the lens, your eyes receive a small boost in magnification or focusing power. This slight adjustment reduces the effort required by your eye muscles to focus on nearby objects, such as text on a book, computer screen, or smartphone. By minimizing this constant muscular effort, the lenses help alleviate symptoms commonly known as digital eye strain or visual fatigue.
Additional Protection
The reference also mentions an important supplementary feature often found in relax lenses:
- The VIU premium blue light filter also protects the eyes from the high proportion of blue light emitted by a digital display (e.g. by smartphones, TVs or PCs).
This blue light filter is integrated into the lens material or coating. It helps to block or absorb a significant portion of the high-energy visible (HEV) blue light emitted by screens. While the effects of blue light are still researched, filtering it is believed by some to contribute further to reducing eye discomfort and potentially supporting eye health when using devices for extended periods.
Key Features Summarized
Here's a quick look at the working principles:
| Feature | How it Works | Benefit |
|---|---|---|
| Increased Lower Lens Power | Provides a subtle boost for near focus | Reduces eyestrain, aids focus |
| Blue Light Filter (e.g., VIU) | Blocks high-energy blue light from digital screens (Smartphones, TVs, PCs) | Additional eye comfort/protection |
Who Might Benefit?
Individuals who spend several hours a day focusing on screens or performing detailed close-up work often experience symptoms like dry eyes, blurred vision, headaches, and neck/shoulder pain. Relax lenses are designed to mitigate these issues by easing the focusing burden on the eyes.
By combining the principle of slight power variation for near vision support with features like blue light filtration, relax lenses offer a specialized solution aimed at improving comfort and potentially reducing fatigue for wearers in the digital age.
