Advantages of contact lens are all except -
Advantages: (i) Less magnification (5%) of the image, (ii) elimination of aberrations and prismatic effect of thick glasses, (iii) wider and better field of vision, (iv) cosmetically better accepted by young persons. Disadvantages: (i) more cost, (ii) cumbersome to wear,especially in old age and in childhood, (iii) corneal complications may occur. Reference : A K KHURANA OPHTALMOLOGY,Edition 4,Page-519
Beneficial in Anisometropis
More cosmetically accepted
helpful in dry eye
Improved corneal oxygen supply
Optics and refraction