A growth of pink, fleshy tissue on the conjunctiva (the white clear tissue around the iris) is called a pterygium. It can look scary, but it usually isn’t cancerous. The growth might spread slowly during your life or stop after a certain point. In extreme cases, it can cover your pupil and cause vision problems. It can cause annoying symptoms. You might feel like you having something in your eye. When it gets red and irritated, it can be treated with anti-inflammatory eye drops. Surgical treatment is uncomfortable, but effective. Though sometimes, it can grow back.