![](https://somoptical.com/wp-content/uploads/2024/05/Preguard-graphic-3.png)
![](https://somoptical.com/wp-content/uploads/2024/05/Preguard-envelope-fsv-and-sf-1.png)
Available Finished and Semi-Finished
Lens Benefits
- 100% UV Blocking
- 70% HEV Blocking- Blue light between 380nm to 440nm
- 53% Near IR Blocking- Between 760nm to 1500nm
- More Protection than typical AR lenses
- Scratch Resistant
![](https://somoptical.com/wp-content/uploads/2024/05/Poly-IR-HEV-FSV-Grid.png)
![](https://somoptical.com/wp-content/uploads/2024/05/Preguard-Base-Curve-Grid.png)
![](https://somoptical.com/wp-content/uploads/2024/05/Preguard-graph-1.png)
Advantages of Preguard:
- Reduced NIR(Near InfraRed)- helps in preventing cataract and AMD eye problems.
- Reduced heat energy- helps in decreasing heat felt from IR.
- Reduced glare.
- Reduced eye strain and fatigue.
- Prevents premature aging or wrinkles around the eyes.
![](https://somoptical.com/wp-content/uploads/2024/05/Preguard-graphic-1.png)