Correlation of OMD with osteochondrogenic and glycoprotein markers (Figure 2K,L) revealed that the transcript was associated negatively with RUNX2, an osteogenic transcription factor essential for bone formation, and SOX9, a master regulator of cartilage differentiation, while positively with BMP2, required for osteoblast differentiation. Here, BMP2 is linked to occult macular dystrophy.