RAB3GAP1 and Marfan syndrome: Microphakia is characterized by smaller lenses and usually occurs together with other systemic abnormalities inside and outside the eye as part of the Warburg Micro syndrome (WARBM1; MIM #600118), Marfan's syndrome (MFS; MIM #154700), or rhizomelic chondrodysplasia calcificans punctata (RCDP; MIM #215100) [2]–[4].