Question

What is the ratio of
the area of the
purple triangle to the
red region, if both
the vertical and
horizontal lines are
perpendicular and
divide the square
into equal parts?​

Answer 1

➥Blind spot, small portion of the visual field of each eye that corresponds to the position of the optic disk (also known as the optic nerve head) within the retina. There are no photoreceptors (i.e., rods or cones) in the optic disk, and, therefore, there is no image detection in this area.