Myopia (Nearsightedness) Eyeglasses
What are Myopia Control Eyeglasses?
Myopia control focuses on slowing myopia progression and can be achieved through various vision correction methods, including myopia control eyeglasses. These eyeglasses use different lens types to correct myopia by altering how light is refracted and focused as it passes through the lens to reach the retina. In contrast, conventional eyeglasses using single-vision lenses can correct myopia but are not suitable for myopia control, as they only correct for a single power and may require a new prescription as vision changes.
Myopia control eyeglasses may help manage childhood myopia by reducing long-term vision decline and mitigating further progression. Young adults may also be at risk of myopia, though it may progress at a slower rate compared to children.
How Do Myopia Control Eyeglasses Work?
Bifocal and multifocal lenses are typically used in eyeglasses for myopia control. Their general design is primarily based on past research indicating how eye growth is regulated by focusing images in the peripheral areas of the retina, the light-sensitive layer at the back of the eye. Single-vision lenses may improve the clarity of central vision, but peripheral light rays are refracted behind the retina, stimulating eye growth and potentially causing further myopia progression.
As such, myopia control eyeglasses aim to slightly defocus peripheral vision and direct light toward the front of the retina, signalling the eye to slow its growth. By doing so, these lenses help the eye to achieve clearer vision, and the retina retains accurate peripheral light focus. This may also help slow down myopia progression. Different lens types will approach this myopia control method in various ways, but they share a similar aim.
How to Choose Myopia Control Eyeglasses
Before selecting myopia control eyeglasses, a comprehensive eye screening is recommended to determine your exact degree of myopia and identify the most suitable lens type for your needs.
Individuals with myopia should consult a professional optometrist or ophthalmologist to receive a suitable pair of prescription myopia control eyeglasses based on their degree of myopia. A comprehensive eye exam will help determine if you are an eligible candidate for myopia control eyeglasses.
Lens Types
Bifocal Lenses
Bifocals provide two prescriptions in a single pair of eyeglasses. Each lens is divided into two halves, with the top half correcting myopia and the bottom half helping to correct presbyopia (or farsightedness). These lenses may be an option for anyone requiring separate lens powers on a single pair of eyeglasses for various tasks at varying distances.
High-Index Lenses
These high-index lenses are made from a thinner plastic material than standard eyeglass lenses and feature a refractive index of 1.53 to 1.74. It may be prescribed to manage cases of high myopia, as they require a higher refractive index to be corrected efficiently.
Hoya MiYOSMART Lenses
Hoya’s MiYOSMART lenses use Defocus Incorporated Multiple Segments (D.I.M.S.) technology to correct myopia and support clearer vision. D.I.M.S. features a unique honeycomb-shaped, segmented treatment area (called the ‘defocus zone’) to slow down myopia progression and a clear zone (the ‘focus zone’) with your vision prescription. The focus zone is designed to provide clear vision for the wearer, while the defocus zone helps manage myopia progression.
Lens Coatings
Anti-Reflective Coatings
If you frequently work with digital screens, in offices with artificial lighting, or often drive to work or other locations, this coating may help reduce glare from bright sources of light while also reducing eye strain.
UV and Blue Light Protection
This layer of protection shields your eyes from long-term exposure to sunlight, which may be harmful to your vision. Some coatings may also include blue light protection, helping to reduce glare and eye strain from frequent use of back-lit screens found on modern digital devices.
Choosing a Suitable Frame
Your frame choice is essential for your long-term comfort while wearing your myopia control eyeglasses.
- Carefully consider the frame’s fit and ensure it is snug and comfortable. It should not easily fall off, nor should it fit too tightly on your face.
- Consider the frame’s durability and flexibility, especially if you have an active lifestyle. It should be able to withstand light physical damage, such as a fall from a height.
- Once you find comfortable and durable frames to consider, choose one that has the aesthetic elements you prefer.
- Lens thickness may also influence your frame choice. Consider the myopia correction lenses you will be using, then select a frame that complements them and conceals their actual thickness. For example, thicker lenses pair well with full-rimmed frames.
Consider Myopia Management with Philip D. Izaac
Early eye screenings are crucial for detecting the onset of myopia, providing necessary vision correction, and reducing the risk of further myopia progression. At Philip D. Izaac, comprehensive vision care is essential for maintaining vision even as you grow older. Contact us today to learn more about myopia management and screenings.
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