Amblyopia, also known as «lazy eye», is one of the most common childhood eye conditions. It is characterised by impaired vision in one or both eyes, which cannot be fully corrected with glasses or contact lenses. Although it occurs mainly in children, early diagnosis and proper treatment can significantly improve vision and prevent permanent problems.
What is amblyopia?;
Amblyopia is not just a problem of refraction. It is a neurodevelopmental disorder of vision, where the brain «ignores» or does not fully utilize the image coming from one eye. This usually occurs when there is a factor that prevents normal development of vision during childhood.
The word «lazy eye» is often used, although it does not fully reflect the severity of the condition. In fact, it is not the eye that is «lazy», but the brain that adapts by rejecting the weaker image.
Causes of amblyopia
Amblyopia can result from various causes:
- Strabismus (strabismic amblyopia): when the eyes are not aligned correctly, the brain suppresses the image from the deviating eye.
- Anisometropia (refractive amblyopia): a large difference in myopia, hyperopia or astigmatism between the two eyes.
- Obstructive amblyopia: When an obstruction (e.g. congenital cataract, eyelid drop) restricts visual input.
- Combined amblyopia: Coexistence of multiple causes.
Diagnosis
The diagnosis of amblyopia is made through an eye examination by a specialist paediatric ophthalmologist. In children, special vision tests, refraction tests and assessment of eye mobility are often used. Early detection, ideally before the age of 6-7 years, is critical for effective treatment.
Traditional treatments
The classic methods of treating amblyopia include:
- Optical correction (glasses or contact lenses): necessary in cases of refractive errors.
- Patching: the healthy eye is covered with an adhesive patch to force the weak eye to work.
- Atropine: drops that cloud the stronger eye, forcing the child to use the weaker one.
Although effective, traditional methods are often accompanied by low compliance, social stigma (particularly in patch use) and limited results in older age groups.
Modern treatment options
In recent years, science has advanced significantly and new methods have been developed that promise better recovery.
1. Digital therapy through games (dichoptic training)
Using computer games and applications on tablets or special screens, where each eye receives different visual information, helps the brain to work together and improve binocular vision.
2. Virtual Reality (VR)
Special VR glasses are used to train the eyes with playful exercises. Children participate in activities that require the use of both eyes, enhancing their cooperation.
3. Vision therapy programs (vision therapy)
They include a series of exercises under the guidance of an optometrist or ophthalmologist. The exercises are aimed at improving visual acuity, stereoscopic vision and coordination.
4. Neuroplasticity and brain training
Recent research shows that even adults with amblyopia can benefit from special education programmes, taking advantage of the brain's ability to reorganise.
5. Pharmacological interventions
At the research level, the use of neuroplasticity-enhancing drugs is being investigated to increase the effectiveness of visual exercises.
6. Specialized glasses and filters
Some filters and lenses can enhance the stimulus in the weak eye, offering a less intrusive alternative to patching.
The role of technology
Technology has revolutionised the treatment of amblyopia. Mobile apps, tablet-based training programs and VR glasses make treatment more enjoyable, improving children's cooperation. They also enable real-time monitoring of progress.
Tips for parents
- Do not neglect regular vision checks on children, even if they do not complain.
- Encourage the child's participation in the therapeutic exercises by turning them into a game.
- Work closely with your ophthalmologist to choose the right method.
- Be patient, the treatment of amblyopia requires time and consistency.
