title: High-resolution perimetry of the central visual field.
abstract: The Octopus Program M1 was designed for the detection/follow-up of central or paracentral visual field defects in patients with neurological disorders or with macular or perimacular diseases. Within the central 25 degrees visual field, 59 test locations provide a resolution of < or = 1.4 degrees. The differential light sensitivity is measured with 'Octopus normal strategy', i.e. a 4/2/1 staircase procedure. The Program M2X has 81 test locations in the central 10 degrees, giving even higher resolution (< or = 0.7 degrees) of the central visual field. Both programs have 2 phases, the second being a re-test. Program M2X's phases are divided into 4 stages and allow interruption anytime.
authors.affiliation: University Eye Clinic, Basel, Switzerland.
authors.forename: H J
authors.initials: HJ
authors.lastname: Kaiser
authors.forename: J
authors.initials: J
authors.lastname: Flammer
authors.forename: P J
authors.initials: PJ
authors.lastname: Bucher
authors.forename: R
authors.initials: R
authors.lastname: De Natale
authors.forename: D
authors.initials: D
authors.lastname: Stümpfig
authors.forename: P
authors.initials: P
authors.lastname: Hendrickson
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003936:Diagnosis, Computer-Assisted; D005260:Female; D006801:Humans; D008268:Macular Degeneration / Q000175:diagnosis; D008297:Male; D012684:Sensory Thresholds; D012984:Software; D014786:Vision Disorders / Q000175:diagnosis; D014792:Visual Acuity; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields