The human eye forms the image of an object at its

The human eye forms the image of an object at this

Eye is a natural optical device by which human could see objects around him. It forms an inverted, real image on a light sensitive surface called retina. It works on the phenomenon of refraction of light through a natural convex lens. However, Sanjana was unable to see clearly the words written on the black board placed at a distance of approximately 3.5m from her. Her mother discussed the same with the doctor. Doctor explained her about this defect of vision and its correction. The human eye forms the image of the object at its ______

In the human eye, the image of an object is formed at the ........

In human eye the image of object is formed at:

What kind of lens is there in our eyes? Where does it form the image of an object?