Ocular Oncology Service, Wills Eye Hospital is a health care organization that offers treatment to patients who suffer from eye tumors. It provides services for the diagnosis and treatment of uveal melanoma tumor through indirect ophthalmoscopy procedure. Located in Philadelphia, the organization also offers treatment for conjunctival squamous and eyelid tumors. In addition, Ocular Oncology Service, Wills Eye Hospital treats patients with orbital tumors that include dermoid cyst, capillary hemangioma, lymphangioma and inflammatory pseudotumor. Its testing services include transillumination, ocular ultrasonography, fluorescein angiography, indocyanine green angiography, ultrasound biomicroscopy and color doppler imaging. The organization is operated by Wills Eye Hospital, which was established in 1832 and is one of the largest eye care organizations in the world.