visual field 
noun
Another term for field of vision.A glaucoma examination includes a check of the optic nerve and/or measurement of the visual field to check for side vision loss....
- A complete ophthalmologic examination to include visual acuity, visual fields, slit lamp examination and metal probing and irrigation of the lacrimal drainage system allows confirmation of the diagnosis.
- Progress was assessed monthly by measuring visual acuity, visual fields, fundoscopic exam, IOP, blood pressure, and pulse rate.