Diagnostic tests are useful to the physician in the diagnosis and management of disease.  In CPT, many ophthalmic tests are found in the section entitled Special Ophthalmological Services.  

These CPT codes describe procedures above and beyond a general eye examination and are usually treated discretely for reimbursement purposes.  In addition, some radiological tests are useful in eye care, such as ophthalmic ultrasound.  This discussion will address the salient attributes of each test as well as Medicare’s regulations.