Which of the following statements is true regarding the given investigation?: (A) It is a type of manual perimetry, (B) A kinetic stimulus is used, (C) Stimulus brightness is constant, (D) All of the above
Answer is C. PERIMETRY :-Systematic measurement of the visual field. - Normal visual field: From the point of fixation, stimuli can typically be detected 60deg superiorly, 70deg inferiorly, 60deg nasally and 100deg temporally. Automated: Automated perimetry offers obvious advantages like stimulus presentation, as well as the recording of patient responses, can be standardized, leading to more reproducible results. Humphrey and Octopus are automated perimeters