Question

define distance of distinct vision (DDV)​

Answer 1

it is defined as the minimum distance between the Eyes lens and the object of form a clear image

least distance of distinct vision for a normal human being is 25cm. hope its help you ......

Answer 2

Distance of Distinct Vision (DDV) is the minimum distance to which our eyes can see an object clearly.

• The distinct vision of a person with normal eyesight is $25cm$ from the eye.
• That means a person should be able to see any object placed at a distance of $25cm$ away from his/her eyes.
• But this vision may vary with age.
• For example, an infant would have distinct vision of $5cm$ to $8cm$.
• However, it is the minimum distance and a person can see objects at infinity.