Addison lost the sight in her left eye when she was a child.Although she has excellent vision in her right eye,she notices that when an object is moving into sight on her right side,she will lose sight of it for a very brief second.How would you explain this to Addison?
A) The vision in Addison's right eye is deteriorating.
B) The image of the object is projecting to an area of the retina that only has rods.
C) The image of the object is projecting to an area of the retina called the fovea.
D) The image of the object is projecting to an area of the retina called the optic disc.

Question

Quizplus · Accepted Answer

The brief moment when Addison loses sight of an object moving into her field of vision on her right side can be explained by the object's image projecting onto the optic disc of her retina. The optic disc, also known as the blind spot, is a point on the retina where the optic nerve exits the eye; it lacks photoreceptors (rods and cones), hence it cannot process visual information, leading to a temporary blind spot in her vision.

Addison Lost the Sight in Her Left Eye When She