First—have you ever felt that your eyes are tired after a full day of wearing contact lenses? Or that wearing lenses for more than a few hours becomes uncomfortable? Silicone hydrogel lenses are designed to reduce these problems, providing greater oxygen permeability and all-day comfort. In this article, you’ll learn what makes these lenses special, how they affect your eye health, and how to choose the most suitable pair.

What are silicone hydrogel lenses?

Silicone hydrogel lenses are soft contact lenses made from a material that combines hydrogel and silicone. Compared to traditional hydrogel lenses, silicone hydrogel lenses allow oxygen to reach the cornea much more efficiently. They combine the flexibility of hydrogel with the superior breathability provided by silicone.

Oxygen permeability – why it’s important

Oxygen permeability, or contact lens oxygen transmissibility (Dk/t), determines how much oxygen reaches your cornea. Lower Dk/t values can cause corneal swelling and discomfort, especially during prolonged lens wear. Traditional hydrogel lenses typically have Dk/t values around 25–50, while silicone hydrogel lenses can reach Dk/t values of 110–128, more than doubling oxygen delivery to the cornea.

Clinical studies show that these lenses significantly increase oxygen availability to the corneal area, helping to prevent hypoxic complications.

Comfort during daily wear

Comfort is just as important as oxygen delivery. Although silicone hydrogel materials usually contain less water than some hydrogel variants, their combined structure provides excellent flexibility and moisture retention. The water content creates a soft, comfortable interface with the eye, while the silicone ensures oxygen flow. This balance allows lenses to maintain a fresh feel even after 8+ hours of wear.

My experience with silicone hydrogel lenses

I remember switching from standard monthly lenses to silicone hydrogel lenses. On the very first day, I noticed that my eyes didn’t feel heavy or dry, even in the late afternoon. “Tired eyes” were no longer an issue—my day became more comfortable, and I could focus on work and hobbies without needing to remove lenses or use eye drops.

How to choose and care for them

1. Check the Dk/t value: Look for lenses with Dk/t of at least 90–100.
2. Water content: If you suffer from dry eyes, choose options with slightly higher water content.
3. Wearing schedule: Daily disposable lenses are ideal if you want maximum comfort and lower infection risk.
4. Care products: Use only professional contact lens solutions to keep lenses clean and hydrated.

Conclusion

Silicone hydrogel lenses are the right choice if you want maximum oxygen permeability and comfort. They allow healthier wear, reduce discomfort, and create a safe environment for your eyes. If you haven’t tried this solution yet, it might be time to give your eyes a chance to feel relieved!