For people who prefer non-surgical vision correction or don't qualify for laser eye surgery, Orthokeratology (Ortho-K) offers a safe and effective alternative. Two of the most popular Ortho-K lens options are CRT (Corneal Refractive Therapy) and VST (Vision Shaping Treatment) lenses. Both are designed to reshape the cornea overnight and provide clear vision during the day without the need for glasses or contact lenses.
While CRT and VST share many similarities, there are key differences that make one option better suited for certain individuals.
Ortho-K Solutions: Comparing CRT and VST for Better Vision
CRT and VST are specially designed gas-permeable contact lenses. They're worn overnight to gently reshape the cornea, which corrects refractive errors such as myopia (nearsightedness) and astigmatism.
Here’s a closer look at each:
Corneal Refractive Therapy (CRT)
- Developed by: Paragon Vision Sciences
- Approved for: Myopia up to -6.00 diopters and astigmatism up to -1.75 diopters.
- Technology: They use a precise design to redistribute corneal cells. This creates a flatter surface to correct refractive errors.
- Common Use Cases: They're recommended for children with progressive myopia and adults seeking non-surgical options.
Vision Shaping Treatment (VST)
- Developed by: Bausch + Lomb
- Approved for: Similar to CRT but may offer broader flexibility.
- Technology: These lenses are customized based on the patient’s corneal topography (the unique shape of their eye). This offers a tailored approach to Ortho-K.
- Common Use Cases: Popular among adults with mild to moderate refractive errors and children who need myopia management.
Which Treatment Is Right for You?
CRT is Ideal For:
- Children with Myopia: CRT is widely used for slowing the progression of myopia in kids. This provides a safe and non-invasive treatment option for growing eyes.
- Patients with Simple Prescriptions: If your corneal shape fits within the standard CRT lens designs, you may benefit from faster results.
- Busy Adults: The simplicity and effectiveness of this treatment option make it a great choice for busy, active people seeking a straightforward solution.
VST is Ideal For:
- Unique Corneal Shapes: VST is customizable, meaning it accommodates irregular or challenging corneal shapes. This makes it a recommended option for patients who don’t qualify for CRT.
- Adults with Specific Needs: These lenses can be tailored for more complex prescriptions or individual comfort preferences. This ensures maximum effectiveness.
- Active Lifestyles: VST lenses are perfect for individuals who are active and need a reliable vision correction solution that requires minimal care and maintenance.
How Abdella EyeCare, PC Can Help
Both CRT and VST offer life-changing benefits, from clear vision without glasses to managing progressive myopia in children. To make the process of choosing between CRT and VST less overwhelming, our eye care team will assess your vision needs, lifestyle, and corneal health to determine the best treatment for you or your child.
Our goal is to provide you with a solution that ensures both comfort and success.
Schedule an Ortho-K Consultation in Flint Township
Discover whether CRT or VST is the right choice for you by scheduling a consultation with us or visiting Abdella EyeCare, PC. We’ll create a personalized plan to achieve your vision goals.