Orthokeratology (Ortho-K) in Singapore: A Comprehensive Guide

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Orthokeratology (Ortho-K) in Singapore: A Comprehensive Guide

Orthokeratology (Ortho-K): A Vision Correction Solution


Orthokeratology, often referred to as Ortho-K, is a revolutionary vision correction method that employs specially designed, custom-made, extended gas-permeable contact lenses. These lenses are worn overnight, gently reshaping the cornea during sleep, allowing individuals to enjoy clear vision without the need for glasses or contact lenses during the daytime.

Benefits of Ortho-K Lenses

Vision Freedom and Myopia Control

Ortho-K lenses are not only a corrective option for myopia (shortsightedness) and astigmatism but also offer the unique advantage of providing excellent functional vision without the need for eyewear during the day. This characteristic makes them particularly popular among people with active lifestyles.

Furthermore, Ortho-K is among the most effective methods for slowing down the progression of childhood myopia.

Ideal Candidates for Ortho-K

Who Should Consider Ortho-K?

  • Individuals with mild myopia and mild astigmatism are ideal candidates for Ortho-K.
  • Children experiencing rapid myopia progression.
  • People with active lifestyles.
  • Athletes involved in contact sports.
  • Those working in dusty environments who prefer not to wear glasses or contact lenses.

4 steps to orthok lens wear

Commencement of Ortho-K Treatment

Starting Ortho-K Treatment

Orthokeratology can begin as early as a child starts primary school, typically around the age of 8. However, eligibility depends on the results of an eye examination and assessment by a qualified Optometrist.

Flexibility and Reversibility

Stopping Ortho-K as Desired

Orthokeratology is a reversible and non-invasive method of vision correction. Patients have the flexibility to discontinue treatment at any time according to their preference.

Frequency of Ortho-K Usage

Customized Ortho-K Usage

Unlike eye surgeries like LASIK, which are limited by corneal thickness, Orthokeratology is not restricted by this factor. Ortho-K lens designs can be adjusted to accommodate changes in corneal shape and prescription at any time.

Achieving "Freedom of Vision"

Timeline for Clear Vision with Ortho-K

The timeline for achieving "Freedom of Vision" with Ortho-K depends on various factors, including the degree of myopia and astigmatism. Mild myopia with minimal astigmatism may result in improved vision within a few days of wearing Ortho-K lenses. For higher prescriptions, it may take several weeks to achieve maximum correction.

Some individuals may experience mild glare and halos initially, which typically diminish with continued use. In rare cases, mild glare and halos may persist after achieving maximum Ortho-K correction.

Fitting Ortho-K Lenses

The Ortho-K Lens Fitting Process

The fitting of Ortho-K lenses involves a comprehensive eye examination, including subjective refraction, slit-lamp biomicroscopy for eye health assessment, and corneal shape scanning (Topography). Optometrists use this data to custom-make Ortho-K lenses tailored to each patient's eyes.

The entire process of obtaining Ortho-K lenses may require 2-3 visits, each lasting approximately 1-2 hours.

Ongoing Eye Health Check-ups

Regular Eye Health Check-ups

To ensure the wearer's eye health is not compromised, optometrists require regular eye examinations. In the initial stages of Ortho-K usage, examinations are more frequent (e.g., first-day visit, first-week visit, first-month visit), but they eventually become bi-annual visits.

Cost of Ortho-K Lenses

Understanding the Investment

Ortho-K lenses are custom-made based on individual corneal landscapes and prescriptions, which demands precise craftsmanship. Consequently, the cost of Ortho-K lenses is relatively higher compared to regular contact lenses. Typically, a pair of Ortho-K lenses costs several times more than normal Gas Permeable (GP) Lenses.

Purchasing Ortho-K Lenses

Importance of Professional Consultation

It is strongly discouraged to purchase Ortho-K lenses, or any contact lenses, from the internet. Quality and safety cannot be guaranteed when buying lenses online. Optometrists need to conduct detailed eye examinations to ensure proper lens fitting and assess corneal health.

Purchasing contact lenses from the internet is not safe and should be avoided. Optometrists play a crucial role in ensuring both the quality of the lenses and the wearer's eye health.

Orthokeratology (Ortho-K) is a groundbreaking vision correction method that offers clear daytime vision without glasses or contact lenses. It is especially beneficial for individuals with mild myopia, active lifestyles, and children with rapidly progressing myopia. Ortho-K lenses are reversible, customizable, and require regular optometric check-ups to maintain eye health. While the investment is higher than regular contact lenses, the safety and precision of Ortho-K make it a preferred choice for many individuals seeking clear, glasses-free vision.