Why cannot we read a printed page by holding it very close to our eyes ?

Explanation

To answer the question "Why cannot we read a printed page by holding it very close to our eyes?", we can follow these steps:

### Step 1: Understanding the Concept of Near Point
The near point of the human eye is the closest distance at which the eye can comfortably focus on an object. For a normal human eye, this distance is approximately 25 cm.

### Step 2: The Effect of Bringing an Object Closer
When you hold a printed page closer than 25 cm to your eyes, the light rays coming from the page enter your eyes at a steeper angle. The eye's lens needs to change its shape to focus these rays properly on the retina.

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