The process of stabilizing and strengthening the cornea with ultraviolet radiation or connecting the orthogonal tissues to the cornea is a modern surgical method used to strengthen the weak cornea in cases of keratoconus and the emergence of the cornea, in which a natural substance of vitamin B is introduced as the substance riboflavin to the tissues of the cornea that it impregnates and then the degree is shed A certain amount of ultraviolet radiation for a specific period, which turns the substance riboflavin into strong bonds between the weakened corneal tissues, thereby increasing the strength of the cornea and stopping and perhaps improving the development of keratoconus