In contrast, revenues in the Ophthalmic Systems SBU were down by 6.9 per cent with a positive contribution to earnings. As a result of a comprehensive change of models at the end of the year, revenues for Optical Coherence Tomography (OCT) decreased. At the same time, a higher level of competition was increasingly noticeable in some segments of this business unit. Revenue in the Surgical Ophthalmology SBU grew by 21.2 per cent. In particular, a new product line for premium intraocular lenses contributed to the positive development.