What is Orthokeratology and How Does it Work?

Orthokeratology, also known as ortho-k, is a non-surgical vision correction method that uses specially designed rigid gas-permeable (RGP) contact lenses to temporarily reshape the cornea, the clear front surface of the eye. These lenses are worn overnight, allowing the cornea to gradually change shape while the wearer sleeps. Upon waking and removing the lenses, the reshaped cornea provides clear vision throughout the day without the need for glasses or regular contact lenses.

The ortho-k lenses work by applying gentle pressure to the central cornea, flattening it slightly. This change in shape alters the way light is focused on the retina, correcting refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. The effects of orthokeratology are temporary, and the cornea will return to its original shape if lens wear is discontinued.
 

Benefits of Orthokeratology for Adults and Children

Orthokeratology offers several benefits for both adults and children seeking an alternative to traditional vision correction methods:

1. Freedom from daytime eyewear: Ortho-k allows individuals to enjoy clear vision during the day without relying on glasses or contact lenses.

2. Sports and outdoor activities: Athletes and those who enjoy outdoor pursuits can benefit from ortho-k, as it eliminates the need for eyewear that may be uncomfortable or impractical during physical activities.

3. Myopia control in children: Orthokeratology has been shown to slow the progression of myopia in children, reducing the risk of developing high myopia and its associated complications later in life.

4. Comfort and convenience: Ortho-k lenses are worn only at night, making them a convenient option for those who find daytime contact lenses uncomfortable or inconvenient.

5. Reversibility: Unlike surgical vision correction procedures, the effects of orthokeratology are reversible. If the wearer decides to discontinue treatment, their cornea will return to its original shape.

The Orthokeratology Process: What to Expect?

Orthokeratology process begins with a comprehensive eye examination, during which an eye care professional will assess the patient's vision, eye health, and suitability for ortho-k treatment. If deemed a good candidate, the patient will undergo a corneal topography scan to create a detailed map of their cornea's surface. This information is used to design custom ortho-k lenses that will effectively reshape the cornea.

Once the custom lenses are fabricated, the patient will return for a fitting and training session. The eye care professional will teach the patient how to properly insert, remove, and care for their ortho-k lenses. Follow-up visits are scheduled to monitor the treatment's progress and make any necessary adjustments to the lenses.

Most patients will notice an improvement in their vision within the first few days of overnight lens wear. Optimal results are typically achieved within 1-2 weeks, at which point the patient can enjoy clear, glasses-free vision throughout the day.

Maintaining Orthokeratology Lenses and Eye Health

Proper care and maintenance of ortho-k lenses are essential for achieving optimal results and maintaining eye health. Patients should adhere to the following guidelines:

1. Always wash and dry hands thoroughly before handling lenses.

2. Clean and disinfect lenses daily using the recommended solutions and techniques.

3. Store lenses in a clean case filled with fresh solution when not in use.

4. Replace lens cases every 1-3 months to minimize the risk of contamination.

5. Attend regular follow-up appointments with an eye care professional to monitor treatment progress and eye health.

By following these guidelines and maintaining open communication with their eye care provider, patients can ensure a safe and successful orthokeratology experience.
 

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Ravina Pandya, Content Writer, has a strong foothold in the market research industry. She specializes in writing well-researched articles from different industries, including food and beverages, information and technology, healthcare, chemical and materials, etc. (https://www.linkedin.com/in/ravina-pandya-1a3984191)