Kowa AP-7000 Instruction Manual page 49

※ Normal Sensitivity Curve
The normal sensitivity curve is a visual field map of a person with a normal visual field. The sensitivity differs in
individuals and by ages in people, however, the sensitivity distribution (the shape of a visual field) is almost the
same. If a visual field is abnormal (if the sensitivity drops partially), the relative scotoma appears in the normal
sensitivity curve in the Screening examination.
感度[dB] 感度[dB] Sensitivity [dB]
100 100
temporal
耳 耳 耳
70 70
inferior
下 下 下
視野角[°] 視野角[°]
Visual angle [degrees]
Sensitivity distribution of a normal visual field (Left eye)
(Zones: 4, Reference value: 5dB, Mariotte blind spot: Omitted)
Intensity of the Presented Stimulus in Screening Examination.
For the point where the patient could not see the stimulus, the ● mark is given.
2 Parameter setting
① Common parameter
You can set the following parameters:
Presentation time, presentation interval, stimulus size, blind spot size, fixation loss, false–positive reaction, false–
negative reaction, stimulus color, background color, fixation, gaze monitor, pupil diameter measurement, and AP–
340
② Screening parameter
You can set the following parameters:
Intensity, Zone, Reference value, Quantify scotoma
superior
上 上 上
60 60
60 60
nasal
鼻 鼻 鼻
Visual angle [degrees]
Intensity of the Presented Stimulus in Screening Examination
Visual angle [degrees]
Sectional view of the macular area and
the Mariotte blind spot(Left eye, Temporal–Nasal)
Normal sensitivity curve
Standard
Stimulus 1
Stimulus 2
Preparation for examinations
4
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