Factors that can Worsen Astigmatism

Age-Related Changes

As we age, changes in the shape and flexibility of the cornea and lens are natural. These shifts can gradually alter the refractive power of the eye, potentially worsening astigmatism.

Recent studies show that astigmatism tends to shift from “with-the-rule” to “against-the-rule” as people grow older. This means the steepest curve of the cornea shifts direction, subtly affecting visual clarity. Regular eye exams become increasingly important with age to monitor and address such changes.

This shift is due to biomechanical changes in the corneal structure over time, including the loss of elasticity and stromal remodeling. Clinical studies confirm that against-the-rule astigmatism becomes more prevalent after the age of 50, which may necessitate updated corrective prescriptions or alternative vision correction strategies such as LASIK.

Eye Injuries and Trauma

Physical injury to the eye can significantly impact its structure. A blow to the eye, surgical complication, or corneal abrasion can alter the shape of the cornea, leading to irregular astigmatism.

For example, corneal scarring or thinning from trauma may distort the corneal curvature. This often results in more complex forms of astigmatism that are harder to correct with standard lenses. Protective eyewear during physical activities can help reduce the risk of injury.

Eye Diseases and Medical Conditions

Several medical conditions can worsen astigmatism:

Image	Condition	Description
	Keratoconus	A progressive eye disorder where the cornea thins and bulges into a cone-like shape.Impact: Significantly increases irregular astigmatism.Treatment: May require corneal cross-linking, scleral lenses, or corneal transplant.
	Diabetes	A progressive eye disorder where the cornea thins and bulges into a cone-like shape.Impact: Significantly increases irregular astigmatism.Treatment: May require corneal cross-linking, scleral lenses, or corneal transplant.
	Atopic Dermatitis	Chronic skin condition that causes itching and irritation around the eyes.Impact: Leads to eye rubbing, increasing risk of corneal deformation and keratoconus.Treatment: Antihistamines and behavior management to reduce rubbing.

Case studies from ophthalmology journals have highlighted a strong correlation between poorly managed diabetes and progressive refractive errors, including astigmatism.

Prolonged Screen Time and Visual Strain

In our digital world, people spend extended hours staring at screens. While screen use doesn’t directly cause astigmatism, it can lead to eye fatigue, dry eyes, and increased discomfort for those already affected.

During the COVID-19 pandemic, an increase in screen exposure, especially among children, was associated with rising reports of visual complaints. A 2021 study published in Frontiers in Public Health found that prolonged digital device use was significantly linked to digital eye strain symptoms, including blurred vision, headaches, and difficulty focusing—particularly in children engaged in remote learning. 

These symptoms can exacerbate discomfort in individuals with pre-existing astigmatism, highlighting the need for balanced screen habits.

To reduce risk, apply the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. Also, ensure proper lighting and take regular breaks.

Environmental Factors

Environmental conditions can subtly influence the health of your eyes. Key factors include:

• UV Exposure: Long-term exposure to ultraviolet rays can damage the cornea, contributing to changes in its shape. Wearing sunglasses with UV protection can help shield your eyes.
• Air Pollution: Pollutants and allergens in the air can cause chronic eye irritation. Continuous exposure may lead to increased eye rubbing or dryness, indirectly worsening astigmatism.

Eye Rubbing and Poor Habits

One of the most overlooked factors is frequent eye rubbing. Often associated with allergies or tiredness, rubbing the eyes can damage the cornea over time. This is particularly risky for children and teenagers whose corneas are still developing.

Repetitive pressure on the eye can lead to conditions like keratoconus, ultimately worsening astigmatism. Encourage healthier habits such as using lubricating eye drops or antihistamines to manage irritation.

Inadequate Vision Correction

Wearing outdated or incorrect prescriptions can strain the eyes further. This can lead to increased discomfort, headaches, and visual distortion. Ensuring timely updates to your glasses or contact lenses is crucial.

Moreover, ignoring early signs of astigmatism or delaying treatment can allow the condition to progress. Annual eye check-ups with a qualified specialist are essential for maintaining visual health.

Protecting Your Vision Starts With Awareness

While astigmatism is a manageable condition, its progression can be influenced by various lifestyle, environmental, and health-related factors. By understanding what contributes to worsening symptoms, you can take proactive steps to safeguard your vision.

Shinagawa Lasik & Aesthetics remains at the forefront of advanced eye care and vision correction in the Philippines. With a dedicated team of experts and state-of-the-art technology, we are committed to helping you achieve optimal eye health. If you’re concerned about astigmatism or looking for personalized care, schedule a consultation with our specialists today.

Your vision deserves the best. Let us help you protect it.

For inquiries, questions, and appointments, call our Patient Care Lines: 

📱 (+63) 917 862 7454

📱 (+63) 921 217 0517

📞 (+632) 7-368 5238

🖥 Talk to our Consultants via Livechat: https://direct.lc.chat/6329011/

📱 Instagram: https://instagram.com/shinagawa_ph/