Dry eye is a condition wherein an individual needs more quality tears to grease up and support the eye. Tears are essential for keeping up the soundness of the front surface of the eye and for giving clear vision. Dry eye is a typical and frequently endless issue, especially in more established grown-ups. And low visual observation which intrudes the step by step working of a tyke or Low vision as the name exhibits the condition associated with surprising.
Optic and Radiations
Optical Power of the Eye
Spectacle Lens
Contact Lens
Biophysics of vision
Stereopsis: 3D Vision