Hi doctors . I have used ortho k lens for 2 months in 2018. later discarded it . While using the ortho k lens I see shadows below the letters and alphabets in the evening time and in low light conditions . Since discarding of lens I am seeing shadows above the letters and alphabets . I experience shadows on both upside and downside after using mobile for 15 min . My retina is clear . How to get rid of shadowing .