How to Choose the Right Laser Safety Glasses for Your Clinic
Laser safety glasses are not optional — they are essential protective equipment required by law in every jurisdiction. Using the wrong glasses or no glasses at all risks permanent eye damage. Here is how to choose correctly.
Understanding OD (Optical Density)
OD rating indicates how much laser light the glasses block. OD4+ blocks 99.99% of laser energy at the specified wavelength. For diode lasers (808nm) and Nd:YAG (1064nm), OD4+ is the minimum recommended rating.
Matching Glasses to Your Laser
| Laser Type | Wavelength | Required OD | Lens Color |
|---|---|---|---|
| 808nm Diode | 800-830nm | OD4+ | Green/Blue |
| 1064nm Nd:YAG | 1040-1090nm | OD4+ | Green |
| 755nm Alex | 740-770nm | OD4+ | Blue |
| IPL Broad Spectrum | 200-2000nm | OD5+ | Dark/Neutral |
| Multi-Wavelength | 800-1100nm | OD4+ | Green (combo) |
Care and Replacement
- Inspect lenses before each use for scratches or damage
- Replace if lenses are scratched — scratches reduce protection
- Keep in protective case when not in use
- Replace every 2-3 years even without visible damage (coating degradation)