Complex sentence: Adult-onset vitelliform macular dystrophy (AVMD) consists of lesions similar to BVMD on the retina; however, the cause is not as definitive as BVMD.
Split into simpler sentences: Adult-onset vitelliform macular dystrophy (AVMD) consists of lesions similar to BVMD on the retina. However, the cause is not as definitive as BVMD.