I am 23 years old girl. My black layer of both eyes is being started to cover by the white layer. I have consulted the eye doctor they told me that this is a eye disease named progressive terrisiom and i have been using eye drops like cromal and flomex. When i was using flomex the progress of this problem was slow but now as from the guidance of the my doctor i have stopped the use of flomex and only using cromal