Implementation of the 14th free medical camp for cataract removal and lens implantation operations Grameen Yemen Foundation and Yemen Medicine Bank YMB are implementing a free surgical medical camp for cataract removal and lens implantation at Grameen Yemen Medical Center for Camps in Al-Maarras area, Az-Zahra District, during the period from 9 to 14 Ramadan, corresponding to 9 to 14 March.