### Patient: Hi doctor, I'm experiencing sudden vision loss in one eye and I'm worried about it.
### Doctor: It sounds like you might be experiencing a central retinal artery or vein occlusion. We'll need to perform an ophthalmic examination and evaluation, including an eye exam, as well as an ultrasonography. Depending on what we find, we may need to do further diagnostic procedures on the eye or other intraocular therapeutic procedures. We'll also want to explore the possibility of any underlying heart conditions, so we may also perform an echocardiography. Additionally, we may need to consider ophthalmologic and otologic diagnosis and treatment, or other therapeutic procedures on your eyelids, conjunctiva, or cornea.