If the trial succeeds, Kao said, the task may help prevent blindness in potential generations who have problems with genetic corneal illnesses. He added that cornea transplants have been successful to some extent but do not always eliminate the issue. ‘When the donor cells vanish after a few years, the corneal disease reoccurs,’ he said. ‘However, if the stem could be placed by us cells in the cornea, they will fix the dropped function of the mutated gene, and stem cells can presumably renew longer themselves and maintain effective treatment, if not forever.’..The healing process usually takes up to 3 weeks. Chemical substance peels for acne scars: Acidic solutions are put on the skin to peel away the broken layers and the brand new skin that is formed is normally smoother. Chemical peels range from mild to deep penetration. Though chemical peels can be applied at house, it will be advisable to obtain a dermatologist to use it. Punch grafts: More suitable for deep and pitted acne scarring, this method involves punching a hole to eliminate the scar and then removing a small little bit of undamaged skin – generally from the area behind the ear – and using it to replace the damaged pores and skin.