Complex sentence: In the 1990s, D&A launched a number of services for customers such as in 1996 the introduction of computer analysis for eyesight, the launch of its own website in 1997 and in 1998 its "contact lenses by post" scheme.
Split into simpler sentences: In the 1990s, D&A launched a number of services for customers such as in 1996 the introduction of computer analysis for eyesight. They launched their website in 1997 and in 1998 its "contact lenses by post" scheme.