According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels. 

How far can humans see?

Based on the curve of the Earth: Standing on a flat surface with your eyes about 5 feet off the ground, the farthest edge that you can see is about 3 miles away.

Resolution of human eye in mm

At a viewing distance of 16" = ~ 400 mm, which is considered a normal reading distance in the US, the smallest object resolution will be ~ 0.116 mm.

What is the limit of resolution of the human eye?

A model of the perception limits of the human visual system was given, resulting in a maximum estimate of approximately 15 million variable-resolution pixels per eye.

How many megapixels is the Eagle Eye?
 

Eagle's Eye 1.3MP (720P) HD Night Vision Bullet Camera.

Why eagle eyes are covered?
Their eyes are more sensitive to movement than they are to color. This sensitivity helps a soaring bird find its prey up to a mile away. In fact, if you cover an eagle's eyes with a hood, the eagle will instantly go unconscious, its brain shutting down due to sensory deprivation. Each eagle eyeball moves separately.

Answer in Hindi...

मनुष्य की आँख कितने मेगापिक्सल की होती है?

576 मेगापिक्सेल

मनुष्य की आँख कितनी दूरी तक देख सकती है।

पृथ्वी के वक्र के आधार पर: जमीन से लगभग 5 फीट की दूरी पर अपनी आंखों के साथ एक सपाट सतह पर खड़े होकर, आप जो सबसे दूर का किनारा देख सकते हैं वह लगभग 3 मील दूर है।

@naveen good