The myopia epidemic continues to grow at an alarming rate, with estimates suggesting that by 2050, nearly 50% of the world’s population will be affected. The Covid-19 pandemic further accelerated this trend, as lockdowns and increased screen time forced more children and adults into sedentary indoor lifestyles, depriving their eyes of essential outdoor exposure and reinforcing excessive near-focus habits.
However, new research suggests a potential breakthrough—perceptual learning, a method that retrains the brain to improve contrast sensitivity, visual acuity, and neural processing in individuals with myopia.
According to Gary Rodney, Master of Optometry, Smart Vision Behavioural Optometrist, and Fellow of the International Academy of Orthokeratology and Myopia Control (FIAOMC), and Jacquie Gattegno, Orthokeratologist and Principal Optometrist at Eyes InDesign Smart Vision Optometry Bondi, this method could complement traditional myopia management strategies, offering a more holistic approach to vision correction.
“Perceptual learning gives us an exciting new way to think about vision treatment,” says Rodney. “We’ve always focused on correcting the optics of myopic eyes, but now we’re looking at how the brain processes what the eyes see. This could be a game-changer in myopia management.”
Gattegno adds, “For years, we’ve known that vision is not just about what the eyes capture—it’s about how the brain interprets those signals. Perceptual learning allows us to improve vision by strengthening the brain’s ability to process visual data, which is particularly valuable for people with myopia.”
Understanding the Connection Between Vision and the Brain
Many people assume that blurry vision is purely an issue with the eyes, but vision is actually a complex process that involves both the optical and neural systems.
- The eyes collect raw data by capturing light and focusing it on the retina.
- The retina converts this light into electrical signals, which are transmitted to the visual cortex in the brain.
- The brain processes these signals, turning them into meaningful images.
For people with myopia (short-sightedness), the issue lies in how light is focused inside the eye. Instead of landing directly on the retina, light rays focus in front of it, causing distant objects to appear blurry.
“The problem with myopia isn’t just that things are blurry—it’s that the brain is constantly receiving distorted input,” explains Rodney. “This can affect how efficiently the brain interprets visual information over time.”
Gattegno further highlights, “If the brain isn’t processing visual information correctly, even the best glasses or contact lenses won’t provide optimal clarity. That’s why we need to focus on improving both the eyes and the brain together.”
How Perceptual Learning Improves Vision in Myopia
Perceptual learning is a form of neuroplasticity-based training that enhances the brain’s ability to process visual information. This technique involves performing specific vision tasks repeatedly, gradually refining the brain’s ability to detect and interpret images.
A recent study found that perceptual learning led to significant improvements in contrast sensitivity and visual acuity in adults with myopia.
“What’s remarkable is that these improvements were achieved without changing the optics of the eye,” says Rodney. “Instead, the brain simply learned to extract more information from the available visual input.”
Gattegno adds, “By engaging in structured visual training exercises, myopic individuals can potentially enhance their ability to distinguish finer details, even without altering the physical shape of the eye.”
What Are the Benefits of Perceptual Learning for Myopia?
While traditional myopia treatments correct vision optically, perceptual learning enhances neural efficiency in visual processing. Some of the key benefits include:
1. Improved Contrast Sensitivity
- Contrast sensitivity allows us to distinguish objects from their backgrounds.
- Myopic individuals often have reduced contrast sensitivity, making it harder to see clearly in low-light conditions or high-glare environments.
- Perceptual learning has been shown to sharpen contrast detection, improving visibility and reducing eye strain.
2. Increased Visual Acuity
- Traditional myopia correction relies on lenses that refocus light.
- Perceptual learning improves how the brain interprets blurry images, enhancing overall sharpness.
- This method could help myopic individuals achieve clearer vision with lower lens prescriptions.
3. Greater Adaptability to Myopia Progression
- As myopia progresses, the brain adapts to worsening visual input, which can make vision correction feel less effective over time.
- Perceptual learning trains the brain to adjust more efficiently, potentially slowing the perception of worsening vision.
4. Enhanced Reading Speed and Visual Processing
- Myopia can slow down reading speeds and reduce comprehension due to difficulties with focus shifts and tracking.
- Studies suggest perceptual learning can increase reading efficiency by improving how quickly the brain processes visual stimuli.
“We’re seeing promising results that suggest perceptual learning could help people with myopia function better in daily activities, from reading to recognising faces in dim lighting,” says Gattegno.
How Perceptual Learning Fits Into a Holistic Myopia Management Plan
While perceptual learning is a promising tool, it is not a replacement for proven myopia control strategies. Instead, it should be combined with other treatments for the best results.
1. Orthokeratology (Ortho-K)
- Special overnight contact lenses gently reshape the cornea.
- Provides clear vision during the day without glasses or contacts.
- Proven to slow myopia progression.
- Learn more about Ortho-K here.
2. Myopia Control Lenses
- Special multi-focal and dual-focus contact lenses slow myopia progression.
- Reduce strain on the visual system, complementing perceptual learning.
3. Vision Therapy
- A personalised training program that strengthens visual processing and eye coordination.
- Helps children and adults improve their visual efficiency in school, work, and daily life.
4. Outdoor Time and Reduced Screen Use
- Spending at least 90 minutes outdoors daily reduces the risk of myopia onset.
- Reducing excessive screen time helps prevent further vision strain.
“A multi-faceted approach is always the best way to manage myopia. Combining optical corrections, lifestyle changes, and perceptual learning can provide the most effective results,” explains Rodney.
Gattegno agrees, adding, “The exciting part is that we’re not just fixing blurry vision anymore—we’re actively enhancing the way the brain processes sight. That opens up new possibilities for long-term myopia management.”
The Future of Myopia Treatment Combines Optics with Neuroscience
As research into perceptual learning continues, experts hope to expand its applications beyond contrast sensitivity and acuity improvements.
“This is just the beginning. The more we understand about how the brain and eyes interact, the better we can design treatments that don’t just compensate for vision loss but actively enhance it,” says Rodney.
Gattegno adds, “Perceptual learning is an exciting addition to our toolbox, but it’s most effective when used alongside other myopia management strategies. By taking a comprehensive approach, we can help patients experience sharper, more functional vision for life.”
Take the Next Step in Protecting Your Vision
If you or your child have myopia and want to explore cutting-edge treatment options, including perceptual learning and vision therapy, book an appointment, or call the Bondi clinic on (02) 9365 5047 or the Mosman clinic on (02) 9969 1600. Experience the difference a holistic approach to vision care can make. Contact Smart Vision Optometry today to see the world in a new way.
