What is scotomata, as referred to in this article?
A. A cure for glaucoma.
B. The effect of glaucoma.
C. The need for glasses in order to see properly.
D. An area of diminished vision within the visual field.
E. The need for contacts in order to see properly.
As the article states on lines 13-18, “subjectively space wise-envisioned, sightless areas…”.