When your eyes look at both far and near objects, what are their muscles doing?

Answer 1

Are you refering to intrinsic or extrinsic eye muscles? Intrinsic eye muscles The ciliary muscle of the iris changes the shape of the lens allowing to lengthen or shorten the focal point. When you reach 40-45, you lose this ability somewhat causing presbyopia.

Extrinsic eye muscles (oculomotor, abducens and trochlear( cause bothe eyes to converge on the object allowing stereoscopic vision. The allow for the independent movement of both eyes so that they can focus (stereoscopically) on a near or far object.

Answer 2

A question seen in this Optical section every day... Things that DO NOT help fix most focus problems in the eye Special exercises or "methods" or "palming" Foods Pills Herbs Things that protect vision over the long haul of your life Staying fit and active may protect the retina Wearing hat and quality sunglasses when in the sun Well balanced diet - with lots of fruit & veggies Regular eye exams Proven things to correct focus errors of the eye Prescription eyeglasses Contact lenses Lasik type surgery Implanted ocular lenses NOTE: if exercises worked for correcting refractive focus errors of the eye - we would all know people doing them - and fewer people would be wearing glasses.

Answer 3

Changing the shape of the lens and of the eye to bring the focal point onto the back surface of the eyeball.