Myopia: Understanding Nearsightedness

What is Myopia?

Myopia, commonly referred to as nearsightedness, is a refractive error that affects the way the eye focuses light. People with myopia can see nearby objects clearly, but distant objects appear blurry or out of focus. It occurs when the eyeball is slightly longer than usual, causing light rays to focus in front of the retina instead of directly on it.

Causes of Myopia

While the exact causes of myopia are not yet fully understood, both genetic and environmental factors play a role in its development. Some common factors contributing to myopia include:

Genetics

Myopia often runs in families, indicating a hereditary component. If one or both parents have myopia, there is an increased likelihood of their children developing it as well.

Environmental Factors

Spending a significant amount of time performing close-up tasks, such as reading, writing, or using digital devices, especially during childhood and adolescence, can increase the risk of developing myopia.

Lifestyle Habits

Lack of outdoor activities, limited exposure to natural light, and excessive near work without breaks may also contribute to the development and progression of myopia.

Identifying Myopia

Identifying myopia is crucial for timely intervention. Here are some common signs and symptoms that may indicate the presence of myopia:

Blurred Vision

Difficulty in seeing distant objects clearly, while having normal or clear vision for close-up tasks.

Squinting

Frequent squinting or straining the eyes in an attempt to see distant objects more clearly.

Eyestrain

Experiencing eyestrain, headaches, or fatigue after focusing on distant objects for an extended period.

Rubbing Eyes

Frequent eye rubbing due to visual discomfort or to temporarily improve focus.

If you or someone you know experiences these symptoms, it is essential to consult an eye care professional for a comprehensive eye examination.

Remedies for Myopia

Although myopia cannot be completely cured, several strategies can help manage and correct the condition. The following remedies are commonly employed:

Eyeglasses and Contact Lenses

Prescription eyeglasses or contact lenses are the most common and effective methods for correcting myopia. They compensate for the refractive error, allowing light to focus accurately on the retina.

Refractive Surgery

In certain cases, refractive surgery, such as LASIK (laser-assisted in-situ keratomileusis) or PRK (photorefractive keratectomy), may be an option to permanently correct myopia. These surgical procedures reshape the cornea to improve the eye's focusing ability.

Orthokeratology (Ortho-K)

This non-surgical technique involves wearing specialised gas-permeable contact lenses overnight to temporarily reshape the cornea. The corneal reshaping provides clear vision during the day, reducing the dependence on glasses or contact lenses.

Lifestyle Modifications

Encouraging healthy lifestyle habits, including spending time outdoors, taking regular breaks during near work, maintaining proper lighting conditions, and practicing good visual hygiene, can help manage myopia and slow its progression.

Myopia, or nearsightedness, is a common refractive error that affects individuals' ability to see distant objects clearly. While it cannot be cured, myopia can be effectively managed through the use of corrective lenses, orthokeratology, refractive surgery, and adopting healthy visual habits.

Regular eye examinations and timely intervention are crucial to ensure optimal eye health. If you suspect you or someone you know has myopia, call us on 02 9371 0093 or book online for a comprehensive eye exam.