Case
Age: 63-year-old white man
Reason for referral to ophthalmology: Sudden vision loss in the right eye
Past medical history: Hypertension, type 2 diabetes, dyslipidemia, obstructive sleep apnea
Past ocular history: Cataract surgery with posterior chamber intraocular lens 3 years ago in both eyes
Medications: Hydrochlorothiazide, valsartan, atorvastatin, metformin
Habits: Non-smoker and does not drink alcohol
History of Present Illness (HPI): Five days ago, he suddenly lost vision in the inferior part of the visual field in his right eye. It did not improve after he woke up the next day and he went to the emergency room (ER) for an evaluation. A detailed review of systems was performed and was negative. A CT scan of the head without contrast and an EKG were performed and were normal. An ophthalmology consultation was requested.
Ophthalmological examination:
Blood pressure: 143/86, heart rate 86
Visual acuity is 20/40 OD, 20/20 OS
Pupils are equal sizes and reactive to light, there is a right RAPD
Color vision is 14/14 correct Ishihara plates in both eyes
Ocular motility and alignment are normal
Slit lamp examination is normal
Neurological examination is normal 
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