ORTHO- K LENSES

Ortho-K Lenses or Orthokeratology lenses are a revolutionary way of correcting short-sightedness
(Myopia).

Instead of wearing glasses or contact lenses to correct your vision through the day, these lenses are worn during the night while you sleep. You can think of these being similar to a night time retainer for helping teeth stay straight.

Lenses are inserted before bed
Whilst asleep, the rigid gas-permeable contact lenses gently reshape the area of the front of the eye called the cornea.
When the lenses are removed on awakening, the cornea holds its new shape allowing for clear vision all day long meaning glasses or contact lenses are not required for day use.
Repeat every night- This must be done every night to maintain crisp vision on awakening as the effects are only temporary.

Benefits:

Reversible- Unlike other vision correction methods such as Laser eye surgery, Ortho K lenses are very low risk and effects are reversible. If the lens wear is stopped, the cornea gradually moulds back to its original shape in a matter of days.

Safe- These contact lenses are a well- established medical product, made from a high quality material safe for wearing at night and sleeping in. Due to being worn less often than daily contact lenses they are actually slightly safer than regular contact lenses. If any problems arise they can simply be removed and wear ceased. As with any contact lens, compliance and attending regular contact lens appointments is very important to prevent problems such as eye infections.

No pain- Once adapted, the lenses are comfortable to wear and do not press hard on the eye. It is a very gradual and gentle pull to redistribute the cells at the front of the eye to reshape.

Myopia Management- Along with improving distance vision in short- sightedness, Ortho K lenses have the added benefit of slowing myopia progression in young people, therefore classed as an effect myopia management method. Ortho K lenses are thought to slow myopia progression by 50%

What to Expect

1st Appointment:

A full assessment of lifestyle and general health is assessed along with check of vision and current spectacle prescription to establish suitability. If suitable for lens fitting, the front of the eyes are examined and scanned in order for specialist lenses to be ordered.

2nd Appointment:

When the lenses arrive we will arrange for you to come in for an appointment to assess the fitting of the lenses and take the time to discuss the wearing schedule and how to safely handle the lenses.

3rd Appointment:

We will next week you the morning after your first wear to check how the eyes feel and initial level of vision.

Following Appointments:

Depending on the initial fit and vision we may see you again in the first 1-2 weeks before regular 6 month follow ups are arranged.

It is recommended that lenses are replaced annually.

Who is suitable?

These are a fantastic option for low-moderate short- sightedness. Suitability will be assessed at a contact lens fitting appointment, as there are other factors to consider for successful Ortho K wear such as shape of eye, general health and lifestyle.

If suitable, Ortho K lenses are a great option for:

Can Ortho K be used for Longsightedness (Hypermetropia)

No, currently Ortho K are only available for low to moderate short-sighted prescriptions.

Can adults and children wear Ortho K lenses?

Yes. There is no minimum age for wear. The Optometrist will assess a child’s level of maturity and ability to comply with contact lens care and instructions before fitting. They are a great option for adults to prevent the need for daytime contact lenses or glasses without the risks of surgery.

Can I buy Ortho K lenses online?

No, Ortho K lenses are a specialist medical product which are custom made for your eyes. The fitting and care must be carried out by a qualified optometrist able to perform specific measurements and scans of the eye.

Frequently Asked Questions

How often do I need to buy Ortho K contact lenses?

This can vary from person to person, we would recommend replacement on average annually. However the lenses will be assessed normally every 6 months.

How long does it take to see results with Ortho K?

The efficacy of these lenses depends on the baseline prescription, however most people will notice an improvement in vision after the first few nights of wear. Most will notice fully corrected daytime vision from around 1 week of use every night. We carry out review appointments at the beginning of wear to ensure vision is correcting the way we anticipate.

Are there side effects of wearing Ortho K?

The same as any contact lens, if worn correctly, and attend for check-ups when invited, it significantly reduces risk of any side effect. On fitting, we will teach and build confidence in handling the contact lenses before you take them home. We will also provide you with a care document. We will also be available to arrange any follow- up appointments with any queries or problems. If instructions are followed, there will be less risk of infection or other associated lens problems.