Figure 4.

The same subject’s HEVF shows lot of missed points. The defects (denoted by thick black tick marks) are situated in the vertical area 20° and the horizontal 50° from the center. In this area 3 adjacent defects were detected, therefore the test is classified as “fail”.

Ayala BMC Ophthalmology 2012 12:35   doi:10.1186/1471-2415-12-35
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