My left eye has a cloud towards the top of iris

Patient: My left eye has a cloud towards the top of the iris. Does anyone know what it could be?

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My left eye has a cloud tow...-1

Doctor: Thank you for writing to us.This could be:PingueculaPterygiumStaphylomaChemical burn to the eyeYou need to see a Doctor to confirm the diagnosis. Some of the causes may need surgery and some can be corrected with eye drops.Wishing the best for you.