Orthokeratology (Ortho-K) Lenses

Orthokeratology lenses, often called Ortho-K lenses, are specially designed contact lenses worn overnight to gently reshape the surface of the eye. Many patients experience clear vision during the day without needing glasses or daytime contact lenses.

At Eyesight.sg, our optometrists provide professional assessments, customised lens fitting, and ongoing monitoring for patients considering orthokeratology lenses in Singapore. Each treatment plan begins with a comprehensive eye examination to ensure safety and suitability.

What Are Orthokeratology Lenses?

Orthokeratology lenses are rigid gas-permeable contact lenses that are worn overnight while sleeping. The lenses gently reshape the front surface of the eye, known as the cornea.

This temporary reshaping changes how light enters the eye, allowing many people to experience clearer vision during the day without wearing glasses or contact lenses.

Unlike refractive surgery, orthokeratology is non-surgical and reversible. If the lenses are discontinued, the cornea gradually returns to its original shape.

Orthokeratology lenses are commonly used to correct:

• Myopia (short-sightedness)

• Mild astigmatism in some cases

Orthokeratology is often discussed with patients who want a non-surgical vision correction option or parents exploring strategies to help manage myopia progression in children.

How Orthokeratology Lenses Work

To understand how orthokeratology lenses work, it helps to look at how vision is focused in the eye.

In people with myopia, light entering the eye focuses in front of the retina instead of directly on it. This causes distant objects to appear blurry.

Orthokeratology lenses work by gently adjusting the shape of the cornea overnight. When the cornea is slightly reshaped, light entering the eye can focus more accurately on the retina.

This means many patients experience:

• Clearer distance vision during the day

• Reduced reliance on glasses or daytime contact lenses

However, the effect is temporary, which is why the lenses are typically worn every night to maintain vision correction.

Because each cornea has a unique shape, orthokeratology lenses must be custom-designed and professionally fitted.

Who Can Benefit from Orthokeratology Lenses?

Orthokeratology lenses may be suitable for a range of patients who want an alternative to glasses or daytime contact lenses.

Children with Myopia

Many parents in Singapore explore orthokeratology lenses for children who have increasing myopia. An optometrist can assess whether the child’s prescription and eye health are suitable for Ortho-K lenses.

Teenagers and Young Adults

Students and young adults often appreciate the convenience of clear vision without needing glasses throughout the day.

Active Individuals

People involved in sports, swimming, or outdoor activities may prefer not wearing glasses during the day.

Adults Seeking Non-Surgical Options

Adults who are not ready for refractive surgery or prefer reversible vision correction sometimes consider orthokeratology lenses.

A comprehensive eye examination is always required to determine suitability.

Orthokeratology Lenses and Myopia Management

Myopia, or short-sightedness, is becoming increasingly common worldwide, including in Singapore. As myopia progresses, the eye becomes longer, which can increase the risk of certain eye health conditions later in life.

Orthokeratology lenses are sometimes discussed as part of a myopia management strategy. Some studies suggest that orthokeratology lenses may help slow myopia progression in certain children. Outcomes may vary and treatment should always be supervised by qualified eye care professionals.

At Eyesight.sg, optometrists monitor children using orthokeratology lenses through regular follow-up visits. This helps ensure that vision changes are tracked carefully and that lenses continue to fit properly.

The Orthokeratology Fitting Process

Orthokeratology lenses require a structured fitting process to ensure they are safe and effective.

Step 1: Comprehensive Eye Examination

The first step is a detailed assessment of your eye health, vision prescription, and the natural tear film that keeps your eyes comfortable when wearing contact lenses. This helps determine whether orthokeratology lenses are suitable for you.

Step 2: Corneal Topography

Special imaging equipment maps the shape and curvature of the cornea. This allows lenses to be customised accurately.

Step 3: Custom Lens Design

Based on the measurements collected, orthokeratology lenses are designed specifically for your eyes.

Step 4: Lens Fitting and Training

Patients are guided on how to insert, remove, and clean the lenses safely.

Step 5: Follow-Up Monitoring

Follow-up visits are essential to ensure the lenses continue fitting properly and that eye health remains stable.

Why Choose Orthokeratology Lenses at Eyesight.sg

Choosing orthokeratology lenses involves more than simply ordering lenses. Professional care and monitoring are essential.

Personalised Lens Fitting

Each orthokeratology lens is customised based on the shape of the patient’s cornea.

Professional Eye Care

Our optometrists perform comprehensive assessments before recommending Ortho-K lenses.

Advanced Diagnostic Technology

Corneal topography helps ensure accurate lens design and fitting.

Ongoing Monitoring

Regular follow-up appointments help maintain eye health and confirm that the lenses continue working effectively. At Eyesight.sg, our goal is to help patients make informed decisions about their vision care.

Frequently Asked Questions About Orthokeratology Lenses in Singapore

Q1: Are orthokeratology lenses safe?

A: When fitted by qualified optometrists and used with proper hygiene and follow-up care, orthokeratology lenses are considered a clinically supervised option for vision correction.

Q2: How long does the vision correction last?

A: Many patients experience clear vision throughout the day after wearing the lenses overnight. Results can vary depending on the prescription and eye characteristics.

Q3: Can children wear Ortho-K lenses?

A: Children with myopia may be suitable candidates for orthokeratology lenses, but suitability must be assessed by an optometrist.

Q4: Do orthokeratology lenses replace glasses permanently?

A: No. The reshaping effect is temporary, which means lenses must be worn regularly to maintain vision correction.

Q5: Do I still need eye check-ups?

A: Yes. Regular eye examinations and follow-up visits are essential to ensure the lenses remain suitable and safe.

Discover Whether Orthokeratology Lenses Are Right for You

If you are considering orthokeratology lenses in Singapore, a professional consultation is the best way to determine whether this treatment is suitable for your eyes.

At Eyesight.sg, our optometrists provide comprehensive assessments and personalised care to help you explore your vision correction options.