•Dr Priscilia Imade
Myopia, commonly known as short-sightedness, is a vision condition where distant objects appear blurry while close ones are seen clearly.
Although it can often be corrected with glasses, contact lenses, or refractive surgery, myopia especially in its moderate to high forms carries a range of potential complications that can threaten long-term eye health and quality of life.
Recognising these risks is important for early intervention and effective management, particularly among children and adolescents whose eyes are still developing.
EYE-HEALTH RISKS
1. Retinal Detachment
One of the most serious complications of myopia is retinal detachment. In individuals with high myopia, the eye is often elongated, which stretches and thins the retina, the light-sensitive tissue lining the back of the eye. This structural vulnerability increases the risk of the retina tearing or pulling away from the underlying supportive tissue. Retinal detachment is a medical emergency and, if not treated promptly, can lead to permanent vision loss or blindness.
2. Macular Damage (Myopic Maculopathy)
Another risk specific to high myopia is myopic maculopathy, a degenerative condition affecting the macula, the part of the retina responsible for central vision. Myopic maculopathy can result in visual distortions, blurriness, or blind spots in the central field of vision. This condition is progressive and can severely impact tasks like reading, driving, and facial recognition.
3. Glaucoma
Myopia is also associated with an increased risk of glaucoma, a group of eye diseases that cause damage to the optic nerve, often due to elevated intraocular pressure. Glaucoma is often referred to as the “silent thief of sight” because it develops gradually and without noticeable symptoms in the early stages.
4. Cataracts
Cataracts, or the clouding of the eye’s natural lens, typically occur with aging, but they tend to develop earlier in individuals with myopia. Cataracts can cause blurred vision, glare, and difficulty with night vision. Though cataracts are treatable through surgery, their early onset in myopic patients can lead to a longer duration of impaired vision and potential surgical risks if other myopia-related conditions are present.
VISION PROBLEMS ASSOCIATED WITH MYOPIA
1. Worsening Vision Over Time:
In many individuals, especially those with high myopia the condition does not simply stabilize with corrective lenses. Instead, it can continue to worsen throughout adolescence and even into adulthood. This progressive deterioration increases the likelihood of associated complications and often requires stronger prescriptions over time.
2. Night Vision Difficulties:
Myopia can also affect night vision. Individuals may struggle to see clearly in dim lighting or while driving at night. This issue arises because the eye’s ability to focus light accurately is diminished in low-light conditions, which can make environments appear blurrier or less defined.
3. Amblyopia (Lazy Eye) in Children:
In children, unequal refractive errors between the eyes can lead to amblyopia, commonly known as lazy eye. When one eye is significantly more myopic than the other, the brain may begin to ignore the input from the weaker eye. If left untreated, amblyopia can result in permanent vision impairment in that eye, even with corrective lenses.
MYOPIA IN CHILDREN
1. Learning Difficulties:
Children with uncorrected myopia often struggle in educational and social settings. They may have trouble seeing the board in class, reading distant text, or engaging safely in physical activities. These challenges can affect academic performance and self-esteem. Because children may not realize their vision is impaired, it’s essential for parents and educators to watch for signs like squinting, sitting too close to screens, or complaining of headaches.
PREVENTING MYOPIA COMPLICATIONS
Preventing or minimising the complications of myopia begins with proactive care and informed decision-making:
1. Get Regular Eye Examination: Routine eye check-ups are important especially for children or individuals with a family history of myopia. Early detection allows for timely treatment and monitoring of progression.
2. Treat Early: Intervening early can significantly reduce the risk of developing severe complications. Eye care professionals can monitor for changes in retinal health, pressure within the eye, and the progression of myopia.
3. Explore Myopia Control Options: Recent advancements in optometry offer several strategies for slowing the progression of myopia in children. These include low-dose atropine eye drops, orthokeratology (overnight contact lenses), and specially designed glasses or soft contact lenses that reduce eye elongation. Discussing these options with an eye care provider can help determine the best plan for each individual.
CONCLUSION
While myopia is often regarded as a minor inconvenience corrected with lenses, its potential complications underscore the importance of vigilance and early intervention. Conditions such as retinal detachment, glaucoma, and myopic maculopathy are serious threats to vision that require ongoing care. Especially in children, untreated myopia can interfere with development and learning. By staying informed and proactive, individuals and families can better safeguard their vision and quality of life.
*Dr Priscilia Imade is CEO, Modern Eye Clinic, Lagos. E-mail: moderneyecliniclagos@gmail.com
Another edition of the column returns on Monday in The Frontier.
