Are pterygium and pinguecula contagious?

No — both are caused by environmental factors like UV exposure, not by an infectious agent, so they can't be passed to anyone else.

Does wearing contact lenses increase my risk?

Contact lens wearers in dusty or dry environments may face a higher risk, simply due to increased eye irritation.

Why do these growths often appear on one side of the eye?

They commonly develop on the side of the eye facing the sun most often — typically the side closest to the nose — though they can occur on both eyes.

Can these conditions affect how my eyes look?

Yes, both can cause visible redness or a yellowish patch, and a pterygium can create an uneven appearance. Cosmetic surgery is available if this is a concern.

Do home remedies help?

Preservative-free artificial tears, sunglasses and humidifiers can relieve symptoms, but they won't remove an existing growth — that requires medical or surgical treatment.

Pterygium vs. Pinguecula: What Is the Difference?

Quick Answer

A pingueculais a small, yellowish bump on the white of the eye that stays put and doesn't affect vision. A pterygium is a fleshy, triangular growth that can extend onto the cornea and affect vision if left untreated. Both are caused by UV exposure, dryness and environmental irritants — and a pinguecula can develop into a pterygium with continued exposure.

The Key Difference

Pinguecula

A bump that stays put — it doesn't extend onto the cornea or threaten vision.

Pterygium

A growth that can spread and distort vision if it reaches the cornea.

What Causes Them?

Both are UV-related degenerative conditions of the conjunctiva, driven by:

UV Exposure

Dry Eye

Dust & Wind

Canberra's high year-round UV levels make these conditions particularly common locally.

Symptoms & Effect on Vision

	Pinguecula	Pterygium
Symptoms	Mild irritation, redness, foreign-body sensation	Dryness, redness, itching, possible blurred vision
Affects vision?	Generally no	Can, if it extends onto the cornea
Typical treatment	Lubricating drops, UV protection	Drops for mild cases; surgery if progressive

Noticed a growth or persistent redness on your eye?

A quick slit-lamp examination can confirm what it is and the right treatment path.

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Diagnosis & Treatment

Diagnosis involves a comprehensive eye exam using a slit-lamp microscope to assess the growth's size, progression and corneal involvement — no invasive testing is typically needed.

Pinguecula Management

• Lubricating eye drops
• Anti-inflammatory drops if needed
• UV protection
• Surgery rarely needed

Pterygium Treatment

• Lubricating and anti-inflammatory drops for mild cases
• Surgical removal if progressive or vision-affecting
• Conjunctival autograft and tissue glue reduce recurrence

Pinguecula can progress to pterygium

Ongoing UV exposure and eye irritation can cause a pinguecula to develop into a pterygium over time, which is exactly why UV protection matters early on.

Conclusion

Both conditions are common, generally harmless, and well-managed when caught early. The main thing to watch for is whether a growth is spreading toward the cornea or affecting your vision — if so, it's worth getting it assessed rather than waiting.

Frequently Asked Questions

A pinguecula typically stays stable after treatment. A pterygium can recur even after surgery, though advanced techniques like conjunctival autografts significantly lower the recurrence rate.