A<unk>  is an eye examination that can detect dysfunction in central and peripheral vision which may be caused by various medical conditions such as glaucoma, stroke, pituitary disease, brain tumours or other neurological deficits.<unk> ing can be performed clinically by keeping the subject's gaze fixed while presenting objects at various places within their<unk>  field. Simple manual equipment can be used such as in the tangent screen<unk>  or the Amsler grid. When dedicated machinery is used it is called a perimeter. The exam may be performed by a technician in one of several ways. The<unk>  may be performed by a technician directly, with the assistance of a machine, or completely by an automated machine. Machine-based<unk> s aid diagnostics by allowing a detailed printout of the patient's<unk>  field. Other names for this<unk>  may include perimetry, Tangent screen exam, Automated perimetry exam, Goldmann<unk>  field exam, or brand names such as Humphrey Field Analyzer, Octopus Perimeter, Optopol PTS perimeter, Oculus Easyfield perimeter, Olleyes<unk> L, etc.
Visual field test
Humphrey visual field analyser
Fundus photography
Retinal vessel analysis
Dosimetry
Dilated fundus examination
Pelvimetry
Ocular tonometry