A chalazion and a stye are both lumps in or along the edge of an eyelid. In some situations it may be difficult to distinguish between a chalazion and stye.
Symptoms of a stye at first generally include eyelid tenderness and redness in the affected area, with irritation and scratchiness in the eye. Further symptoms of a stye include:
If a large chalazion or stye does not heal after other treatments or if it affects your vision, your Eye doctor may need to drain it in surgery. The procedure is usually performed under local anesthesia in your ophthalmologist's clinic.