A surgical procedure where a cut or incision is made in the sclera to treat various eye conditions. Different sclerotomy procedures are used depending on the patient's age, disease, and severity of the disease. In anterior sclerotomy, an incision is made through the anterior chamber to relieve glaucoma. Posterior sclerotomy corrects a retinal detachment and removes a foreign body by making an incision into the vitreous through the sclera.