Choosing Contact Lenses: Understanding Hydrogel and Silicone Hydrogel

In our previous discussion, we mentioned that the water content of contact lenses 隱形眼鏡含水量 is one of the indicators for selecting the right lenses. However, a higher water content does not necessarily mean better quality. Other factors also play a role in determining the most suitable contact lenses for you. Among these factors, the material of the contact lens 隱形眼鏡 significantly affects its oxygen permeability and comfort. Currently, there are two main types of contact lens materials on the market: Hydrogel and Silicone Hydrogel.

What are Hydrogel Contact Lenses?

Hydrogel contact lenses are made from water-containing polymers, designed to be thin and soft. The water content of hydrogel lenses typically ranges from 55% to 70%. Hydrogel has long been used in many lenses for myopia, hyperopia, presbyopia, and Japanese and Korean color contact lenses.

Advantages and Disadvantages of Hydrogel Lenses

1. Soft and Comfortable: Particularly suitable for short-term use.
2. Lower Oxygen Permeability: Hydrogel lenses generally have lower oxygen permeability compared to silicone hydrogel lenses.
3. Cost-Effective: Hydrogel lenses are usually cheaper than silicone hydrogel lenses.

Recommended Hydrogel Lenses:

• Bausch + Lomb Soflens 1 Day
• 1 Day Acuvue Moist
• Biomedics 1 Day
• Dailies Aquacomfort Plus

Recommended Hydrogel Color Contact Lenses:

• Acuvue Define Series
• Bausch + Lomb LACELLE Series
• Secret CandyMagic 1 Day

What are Silicone Hydrogel Contact Lenses 矽水凝膠隱形眼鏡?

With advancements in contact lens materials, silicone hydrogel lenses combine the benefits of hydrogel with silicone. Silicone is highly breathable, enhancing the delivery of oxygen to the eyes. The water content of silicone hydrogel lenses typically ranges from 38% to 45%, and high-oxygen silicone hydrogel lenses have an oxygen permeability of over 125.

Advantages and Disadvantages of Silicone Hydrogel Lenses

1. Excellent Oxygen Transmission: Reduces eye irritation and dryness.
2. Extended Wear: Due to high oxygen permeability, silicone hydrogel lenses can be worn for longer periods.
3. Effective Moisture Retention: Although silicone hydrogel lenses have a lower water content than hydrogel lenses, their highly permeable material compensates for this, enhancing comfort.
4. Higher Cost: Silicone hydrogel lenses are generally more expensive than hydrogel lenses.
5. Initial Discomfort: New users may find silicone hydrogel lenses easier to put on, but they may also feel a foreign body sensation due to unfamiliarity.

Recommended Silicone Hydrogel Lenses:

• 1 Day Acuvue Oasys
• Clariti 1 Day
• My Day Disposable

Recommended Silicone Hydrogel Color Contact Lenses:

• Clalen O2O2 Color 1 Day
• Lensme Lilmoon Monthly

Conclusion

When choosing between hydrogel and silicone hydrogel contact lenses, the decision ultimately depends on individual needs and lifestyle. Hydrogel lenses may be suitable for occasional or short-term wear and for those on a budget, while silicone hydrogel lenses are better for those seeking comfort and flexibility for long-term wear. For more information on contact lens materials, feel free to explore additional articles. If you have any questions when selecting contact lenses, feel free to WhatsApp us! With 8 years of experience, we are confident to offer you the right and comfortable contact lenses: Truelight Lens隱形眼鏡