Question

What is retinal image blur? ​

Answer 1

Answer:

When the optical system of an eye is mis-focused on an object, the image of any single point of light is uniformly spread out across a small area of retinal surface. ... Given that the shape of the pupil in the normal human eye is circular, the image is a circular region called a 'blur circle' or 'blur disk'.

Answer 2

Answer:

"When the optical system of an eye is mis-focused on an object, the image of any single point of light is uniformly spread out across a small area of retinal surface. ... Given that the shape of the pupil in the normal human eye is circular, the image is a circular region called a 'blur circle' or 'blur disk'."

Explanation:

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