Is pterygium surgery safe?

pterygium surgery - Healthlifenews

Is pterygium surgery safe?

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Pterygium is a common eye condition characterized by the growth of a fleshy tissue that extends from the conjunctiva onto the cornea. It could cause discomfort, redness, and visual problems. In severe cases, surgical intervention may be recommended to remove the pterygium and prevent further complications. However, before undergoing any surgery, it is natural to have concerns about its safety. This article aims to provide a comprehensive overview of pterygium surgery and address the question: Is pterygium surgery safe?

How does pterygium affect vision?

On the conjunctiva, the transparent membrane that covers the white area of the eye, a pterygium is a non-cancerous protrusion of tissue. It typically appears on the inner corner of the eye and grows towards the cornea, which is the clear, dome-shaped surface that covers the front of the eye.

Pterygium can affect vision in several ways:


As the pterygium grows onto the cornea, it can cause irregular curvature, leading to astigmatism. A refractive imperfection called astigmatism results in vision that is distorted or blurry.

Corneal distortion:

The pterygium can cause the cornea to become distorted or uneven, leading to visual disturbances. This can result in blurred vision, double vision, or the perception of irregular shapes.

Dryness and irritation:

Pterygium can disrupt the tear film, which is important for maintaining a smooth and clear corneal surface. This can lead to dryness, redness, itching, and a foreign body sensation in the affected eye. These symptoms can further affect visual clarity.

Obstruction of the visual axis:

In severe cases where the pterygium grows significantly and covers the central part of the cornea, it can directly block the visual axis. This can cause a significant reduction in vision or even complete loss of vision in extreme cases.

If a pterygium is causing significant vision problems or discomfort, it may require treatment, such as artificial tears or lubricating eye drops to relieve dryness and irritation. In more severe cases, surgical removal of the pterygium may be necessary to restore clear vision and alleviate symptoms. It’s important to consult an eye care professional for an accurate diagnosis and appropriate management.

Causes of pterygium

The exact cause of pterygium is not fully understood, but several factors are believed to contribute to its development. These factors include:

Ultraviolet (UV) radiation:

Long-term exposure to sunlight, particularly to UV rays, is considered a major risk factor for pterygium. UV radiation can damage the conjunctiva and promote the growth of abnormal tissue.

Dry and dusty environments:

Living or working in areas with high levels of dust, wind, or dryness may increase the likelihood of developing a pterygium. These conditions can cause chronic irritation to the eyes, leading to the formation of growth.


Some studies suggest that there may be a genetic predisposition to developing pterygium. Certain individuals may have a higher susceptibility to the condition due to inherited factors.

Chronic eye irritation and inflammation:

Chronic irritation and inflammation of the conjunctiva, possibly due to factors like eye rubbing, exposure to irritants, or allergic reactions, can contribute to the formation of pterygium.

Other factors:

Certain occupations that involve prolonged outdoor work, such as farming or fishing, may increase the risk of pterygium. Additionally, individuals with a history of other eye conditions, such as pinguecula (a similar growth on the conjunctiva), have a higher likelihood of developing pterygium.

It’s important to note that while these factors are associated with an increased risk of pterygium, the condition can still occur in individuals without any known risk factors. If you suspect you have a pterygium or have concerns about your eye health, it is recommended to consult with the best ophthalmologist in Coimbatore for proper evaluation and guidance.

What happens if the pterygium is left untreated?

If left untreated, a pterygium can potentially cause various complications and affect the health and vision of the affected eye. Here are some potential consequences of untreated pterygium:

Vision impairment:

As the pterygium grows, it can encroach onto the cornea and obstruct the visual axis. This may cause eyesight to become distorted or hazy. In severe cases, where the pterygium covers the central part of the cornea, it can significantly reduce vision or cause vision loss.


The growth of the pterygium onto the cornea can alter its shape, leading to astigmatism. Astigmatism causes blurred or distorted vision as light is not properly focused on the retina.

Dryness and discomfort:

Pterygium can disrupt the tear film, which leads to dryness and irritation of the affected eye. This can result in symptoms such as redness, itching, burning, and a gritty or foreign body sensation.

Recurrence and growth:

Pterygium has a tendency to grow slowly over time. If left untreated, it can continue to enlarge, potentially affecting a larger area of the cornea and worsening the visual and ocular surface problems. Even after surgical removal, there is a risk of pterygium recurrence.

Cosmetic concerns:

A pterygium can be visible on the surface of the eye, causing an abnormal appearance. This may be a cosmetic concern for some individuals.

It’s important to monitor pterygium growth and seek medical attention if you notice any changes or experience symptoms. Early intervention and appropriate treatment, whether through conservative measures or surgical removal, can help prevent or mitigate these potential complications and preserve visual function and ocular health.

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Benefits of Pterygium Surgery

Pterygium surgery, also known as pterygium excision, offers several benefits for individuals with significant pterygium growth or related symptoms. Here are some of the benefits of pterygium surgery:

Improved vision:

Pterygium can cause visual disturbances, such as blurred vision or astigmatism. By surgically removing the pterygium, the irregular corneal shape can be corrected, resulting in improved visual clarity and reduced refractive errors.

Reduction of symptoms:

Pterygium can cause discomfort, dryness, redness, and a foreign body sensation in the affected eye. Surgery can alleviate these symptoms by removing the abnormal tissue and restoring the smooth ocular surface.

Prevention of further growth:

Pterygium has a tendency to gradually enlarge over time, potentially affecting a larger area of the cornea. Surgical removal can eliminate pterygium and prevent its further growth and associated complications.

Cosmetic improvement:

Pterygium can be visible on the surface of the eye, affecting the eye’s appearance. Surgery can remove the pterygium, resulting in a more natural and cosmetically pleasing appearance.

Reduced risk of recurrence:

While pterygium surgery does carry a risk of recurrence, it is generally lower compared to non-surgical treatments. Various surgical techniques, such as conjunctival grafting, can be employed to minimize the chance of pterygium regrowth.

Restoration of ocular health:

Pterygium can disrupt the tear film and cause chronic irritation and inflammation. Surgical removal of the pterygium helps restore the ocular surface, promotes better tear film distribution, and improves overall ocular health.

It’s important to consult with an eye specialist to determine if surgery is the appropriate treatment option for your specific case. They can evaluate the severity of the pterygium, assess your symptoms, and discuss the potential benefits and risks of surgery based on your individual circumstances.

When is the best time to remove a pterygium?

The optimal timing for pterygium removal depends on various factors, including the severity of the pterygium, symptoms experienced, rate of growth, and the impact on vision and ocular health. In general, the best time to remove a pterygium may vary on a case-by-case basis, and it is best determined by an eye doctor. However, here are some general considerations:

Progressive growth:

If a pterygium is actively growing and causing significant symptoms or vision problems, it may be advisable to consider surgical removal. Waiting for the pterygium to stabilize or reach a certain size is not necessary if it is causing significant discomfort or affecting vision.

Impact on vision:

If the pterygium is encroaching onto the central part of the cornea, obstructing the visual axis, or causing significant astigmatism, prompt surgical intervention may be recommended to restore clear vision.

Persistent symptoms:

If conservative measures, such as lubricating eye drops or artificial tears, do not effectively alleviate symptoms such as dryness, redness, or irritation, surgical removal may be considered to provide long-term relief.

Cosmetic concerns:

If the pterygium is cosmetically bothersome to the individual, causing self-consciousness or affecting their appearance, surgical removal can address these concerns.

Individual circumstances:

The timing of pterygium surgery may also be influenced by the patient’s overall health, availability for post-operative care, and personal preferences. These factors can be discussed with an eye care professional to determine the most suitable timing.

It’s important to consult with an experienced ophthalmologist or eye surgeon for a comprehensive evaluation and personalized recommendation regarding the timing of pterygium removal. They can assess your specific situation and provide guidance based on their expertise and your individual needs.

Final Thoughts:

In conclusion, pterygium surgery is a safe and effective procedure for the removal of pterygium growth from the eye. With advancements in surgical techniques and proper postoperative care, the risks and complications associated with the surgery have been minimized. Consulting with an experienced ophthalmic surgeon at one the top hospital in Coimbatore by following their guidance can help ensure a successful outcome and improved eye health.

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