### Patient: Doctor, I have been experiencing excessive snoring and feeling extremely tired during the day. What could be causing this?
### Doctor: Based on your symptoms, it is possible that you have obstructive sleep apnea (OSA). To confirm this, we will need to conduct several medical tests including an interview, evaluation and consultation, electroencephalogram (EEG), echocardiography, ophthalmologic and otologic diagnosis and treatment, ultrasound and other therapeutic procedures on eyelids, conjunctiva, and cornea. In addition, we may refer you to a home health care service for further assistance.