Who can wear night lenses?

Night lenses, also known as orthokeratology contact lenses, are corrective lenses specially designed to reshape your cornea during sleep.

These rigid lenses are comfortable and highly oxygen-permeable. 

However, not everyone is eligible to wear night lenses. Find out more about orthoK  in our COP9 article.

Night lenses and refractive disorders

Night lenses are primarily intended for people with myopia or astigmatism, but can also be used to correct other visual defects such as farsightedness or presbyopia

They are generally made of rigid, oxygen-permeable materials, which allow the cornea to receive necessary oxygenation during the night. 

How long should you wear night lenses?

Unlike traditional contact lenses, which must be worn during the day and removed at night, night lenses are worn while sleeping (wear time: 6 hours minimum) and removed in the morning. 

They work by temporarily reshaping the cornea to correct visual defects and then provide you with optimal optical correction throughout the day. 

Who can prescribe night lenses?

Orthokeratology can be prescribed by an ophthalmologist or a contactologist

 

Before you start wearing nighttime lenses, it is important to perform a complete eye exam (such as a corneal topography, funduscopic exam, etc.) to determine if you are a good candidate for this type of lens.

 

These exams will also accurately measure the diopter of each eye.

 

Certain eye conditions, such as keratoconus, cataracts or severe dry eye, may make nighttime lens wear unsuitable.

 

In our COP9 space, you will have access, thanks to our ophthalmologist Dr Stéphanie Zwillinger, to a complete treatment course.
Our contactologist will be at your side during the adaptation time for your night lenses.

What are the benefits of night lenses?

OrthoK has many advantages, such as: 

 

  • clear vision without having to wear glasses or contact lenses during the day;

  • a reduction in the progression of children myopia; 

  • comfort and greater freedom of movement. 

 

These lenses change the curvature of the cornea while you sleep and temporarily correct the field of vision without the need for prescription glasses or soft lenses.

 

However, it is important to note that some people may experience some discomfort at first. 

 

Unlike soft lenses, prolonged nighttime lens wear can be difficult for some, but most adapt over time

 

Finally, the renewal frequency is not binding: only a few months, according to the recommendations of our contactologist.

Adolescente face à son miroir, elle met des lentilles freinatrices de jour.

How to care for night lenses?

It is important to follow the instructions for use and maintenance of night lenses to avoid any risk of infection or eye irritation. Our contactologist is here to advise you!

Don’t forget to decontaminate your lenses before each use: wash your hands, then rinse them with a suitable care solution, do not use tap water.

 

A quick reminder for our readers who wear lenses: well-cleaned lenses will be more comfortable, promote oxygenation of your eye, and will prevent you from any risk of infection. 

 

Also don’t forget to rinse your case with your cleaning product!

In conclusion

Night lenses can be worn by people with visual defects such as myopia, astigmatism, hyperopia or presbyopia. They are subject to a prescription and regular monitoring by an eye care professional.

 

They allow you to avoid carrying out refractive surgery, while offering you visual quality on a daily basis.

 

Orthokeratology is a practical and effective solution to correct visual defects during sleep and enjoy clear visual acuity throughout the day. Recommended by our COP9 team, do not hesitate to consult the articles below to find out more about orthokeratology and contactology!

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