FAQ - Contact lenses

Introduction

Contact lenses are a practical and versatile solution for correcting vision, but their effectiveness depends on proper care, timely replacement, and choosing the type of lenses best suited to your needs. This article gathers answers to the most frequently asked questions about contact lenses to help you better understand how they work, how to care for them, and the options available on the market. For any personalized recommendations, it is always advisable to consult an eye care professional.

When should you replace your contact lenses?

The replacement frequency depends on the type of lenses you wear. Each category has a specific usage period that is essential to respect in order to maintain eye health.

Daily lenses

These are designed for single use. You wear them for one day, then throw them away. No cleaning is necessary, making them a practical and hygienic option.

Frequent replacement lenses

These lenses must be replaced every 1 to 2 weeks according to the recommendations of the manufacturer or your optometrist. They require daily care.

Monthly lenses

These can be worn for up to 30 days, with regular cleaning and disinfection. Following the care instructions is essential to prevent infections.

Third- or annual lenses

More durable, they require rigorous care.

Replacement must follow the recommendations of the manufacturer and your eye care professional. Respecting the replacement schedule is essential to avoid eye complications and maintain optimal comfort.

Which contact lenses are best for me?

The choice depends on several factors: your prescription, your comfort, your lifestyle and your personal preferences.

Prescription

Contact lenses exist to correct myopia, hyperopia, astigmatism, and presbyopia. Your optometrist will determine the type of lenses best suited to your prescription.

Comfort

Some people prefer soft lenses, others rigid gas permeable (RGP) lenses. Trying different types can help determine what suits you best.

Lifestyle

Active lifestyle: daily disposable lenses are often ideal.

Prolonged screen work: some lenses reduce digital eye strain.

Personal preferences

Some people want to change their eye color or prioritize a wider peripheral vision.

All these preferences can be discussed with your eye care professional.

What solutions should you use to clean your contact lenses?

Proper care is essential to prevent infections and prolong the life of your lenses.

Multipurpose solution

It cleans, rinses, disinfects, and stores lenses. It's the most common solution.

Saline solution

It's only used to rinse lenses. It doesn't disinfect and should be used in addition to a cleaning solution.

Oxidizing solution

Based on hydrogen peroxide, it provides a deep clean. It requires a special case and a mandatory neutralization step.

To absolutely avoid:

• Tap water

• Saliva

• Non-sterile saline solution

• Household cleaning products

  
  

These liquids can cause serious infections.

Why can't I see well with my contact lenses?

Several reasons can explain a decrease in visual quality.

Outdated prescription

Your prescription may have changed. Regular updates are essential.

Dirty or damaged lenses

Deposits, scratches, or deformations can impair vision. Proper cleaning is essential.

Fitting problem

A poorly fitting lens can cause discomfort and blurred vision. A professional fitting may be necessary.

Underlying eye condition

Dry eyes, uncorrected astigmatism, or other problems can affect vision.

If in doubt, consult an eye care professional promptly.

What types of contact lenses are available?

The market offers a wide variety of lenses adapted to different needs.

Soft lenses

Made of hydrogel or silicone hydrogel, they are comfortable and easy to wear. They correct most vision problems.

Rigid gas permeable (RGP) lenses

More durable and offering very clear vision, they allow for good oxygenation of the cornea. They are particularly suitable for astigmatism.

Toric lenses

Designed to correct astigmatism, available in soft or RGP versions.

Multifocal lenses

They correct presbyopia by offering several vision zones (near, intermediate, distance).

Colored lenses

Available with or without a prescription, they allow you to change the appearance of your eyes. To determine the best option, a complete eye exam by an optometrist is essential.

Conclusion

Contact lenses are a flexible and effective solution for correcting vision, but their use requires rigorous maintenance, proper replacement, and a choice tailored to your needs. By consulting an eye care professional, you can find the most comfortable and safe lenses for your lifestyle.