For more complicated procedures, scanning laser ophthalmoscopy is available.    From Wordnik.com.  [Dec. 6, 1850: The Eyes Have It, Thanks to the Ophthalmoscope] Reference

Given what you do (ie, no ophthalmoscopy or other procedures where you're "in someone's face") your patients from yesterday are probably ok.    From Wordnik.com.  [Strep Throat and Medical Ethics] Reference

Furthermore, no changes were seen before termination of treatment in clinical chemistry, haematology, urinalysis and during ophthalmoscopy or during electrocardiographic examination, at necropsy or at histopathological examination.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference