Step 1: Understanding the Concept
The macula lutea is the yellow spot of the retina, with the fovea centralis at its centre.
Step 2: Check each statement
It has the highest density of cones and gives the sharpest vision, so options A, B and D are correct.
Step 3: Find the error
The area where the optic nerve leaves the eye is the blind spot (optic disc), which has no photoreceptors. So this statement is incorrect.
Final Answer:
The statement that the optic nerve leaves from the macula lutea is incorrect.
\[ \boxed{\text{(C) }\text{It is the area of retina from where optic nerve leaves the eyeball.}} \]