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A pinguecula is a small, yellowish bump that forms on the white part of the eye, usually near the edge of the cornea. It is made up of protein, fat, or calcium deposits that develop over time. Pingueculae are common in adults and often appear on the side of the eye closest to the nose. Although usually harmless, they can cause irritation, redness, or a dry, gritty feeling.
read more about pinguecula ...A pinguecula develops when the eye's surface is exposed to sunlight, dust, wind, or dry conditions over an extended period. Ultraviolet (UV) radiation is the primary trigger, which is why it's more common in individuals who spend a significant amount of time outdoors. Other factors like aging, chronic eye irritation, or contact lens use can also contribute. Protecting the eyes from harsh environments helps lower the risk.
Most pingueculae don't affect vision, but they can cause discomfort. The affected area may feel dry, itchy, or irritated, especially during windy or dusty conditions. In some cases, the pinguecula becomes inflamed, a condition known as pingueculitis, which causes redness and swelling. If the bump grows too large, it can interfere with contact lens wear or eye movement.
A pinguecula is a small, yellowish growth on the white part of the eye caused by sun or wind exposure. It's usually harmless but can cause irritation, highlighting the need for UV protection.
Each of these terms connects to how the eyes work together to create clear and comfortable vision. Whether it involves light processing, visual coordination, or lens performance, understanding its role helps explain how different parts of the visual system support daily activities like reading, driving, and recognizing faces.
To learn more about how the eyes function and the terms that shape your understanding of vision, explore the full Lens.com Glossary. It's a helpful resource for discovering how everyday eye health concepts relate to contact lenses and clear, comfortable sight.
Common signs and symptoms include:
An eye doctor can identify a pinguecula during a routine eye exam using a slit-lamp microscope. The doctor checks the size, color, and location of the bump to make sure it's not something more serious, like a pterygium (a growth that extends onto the cornea). Most cases are mild and don't require special tests. Regular eye checkups help monitor changes over time.
It can. A pinguecula sits on the white of the eye, while a pterygium can grow onto the cornea and change the eye surface. Long-term UV exposure and irritation raise the chance of progression, so protection helps.
Most pingueculae do not affect vision because the growth usually stays on the white of the eye. Vision changes are more likely if inflammation becomes frequent or if the growth starts extending toward the cornea. If you notice blurred vision or a growing bump, an eye exam can help rule out other issues.
Lubricating eye drops can help reduce dryness and the gritty feeling. Limiting exposure to wind, dust, and smoke can also reduce flare-ups. Sunglasses with UV protection help protect the eye surface and can lower irritation outdoors.
Treatment is usually needed when the area becomes inflamed or uncomfortable, or when it starts interfering with contact lens wear. An eye doctor might suggest lubricating drops, anti-inflammatory drops for flare-ups, or lifestyle changes to reduce irritation. Surgery is uncommon and is usually considered only if the bump is persistently inflamed or very bothersome.
1. What Is a Pinguecula and a Pterygium (Surfer’s Eye)?. American Academy of Ophthalmology. https://www.aao.org/eye-health/diseases/pinguecula-pterygium. Accessed January 12, 2026.
2. Pinguecula: What It Is, Symptoms, Causes & Treatment. Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/23443-pinguecula. Accessed January 12, 2026.
3. Pinguecula. MedlinePlus Medical Encyclopedia (National Library of Medicine). https://medlineplus.gov/ency/article/001025.htm. Accessed January 12, 2026.
4. Pinguecula. StatPearls (NCBI Bookshelf, National Library of Medicine). https://www.ncbi.nlm.nih.gov/books/NBK558965/. Accessed January 12, 2026.
5. Protecting your eyes from the sun’s UV light. National Eye Institute (NIH). https://www.nei.nih.gov/research-and-training/research-news/protecting-your-eyes-suns-uv-light. Accessed January 12, 2026.