Semi-finished – Line-Bifocal Semi-Finished – SOMO 1.67 Spherical FT 28-Bifocal Semi-Finished – SOMO 1.60 Spherical FT 28-Bifocal Semi-Finished – SOMO Polycarbonate Spherical FT 28 Semi-Finished – SOMO 1.56 Spherical FT 28-Bifocal