Contact lenses can withstand surprisingly high temperatures, although they are designed to be worn at normal body temperature.
Contact Lens Heat Tolerance
Here’s what we know about the temperature tolerance of contact lenses, based on current information:
- Sterilization Temperatures: Contact lenses are routinely sterilized at temperatures up to 250 degrees Fahrenheit (approximately 121 degrees Celsius). This ensures they are free from harmful bacteria and safe for use.
- Boiling Water: Contact lenses can also tolerate being placed in boiling water without being destroyed. This is often done to re-sterilize lenses that may have become dirty.
- Practical Use: While they can tolerate high temperatures for sterilization and cleaning, contact lenses are not designed for prolonged exposure to extremely high temperatures.
Temperature Tolerances of Contact Lenses
| Temperature Scenario | Temperature | Effect on Contact Lenses |
|---|---|---|
| Sterilization | Up to 250°F (approx. 121°C) | Tolerated |
| Boiling Water | 212°F (100°C) | Tolerated |
| Normal Body Temperature | 98.6°F (37°C) | Designed For |
| Extreme Heat Exposure | Significantly higher | Not recommended |
Key Points To Remember
- While contact lenses can withstand high temperatures during sterilization, direct exposure to extreme heat should be avoided to maintain their integrity.
- Boiling water is often used for re-sterilization, showing their tolerance to these temperatures.
- Always follow your eye care professional's instructions for cleaning and caring for your contact lenses.
