1937	MERIDIAN founded as manufacturer for optical devices.
1982	Prof. Fankhauser together with LASAG launches the first commercially available ophthalmic Nd:YAG laser - Microruptor II.
1986	LASAG launches the second generation Nd:YAG laser - Topaz.
1991	LASAG launches the revolutionary designed Nd:YAG laser – Microruptor III
1991	MERIDIAN, meanwhile a HAAG-STREIT company, acquires the ophthalmic laser segment of LASAG.
1994	MERIDIAN launches its first frequency doubled Nd:YAG laser - Merilite
2000	PPU medical services, a team of former LASAG engineers, acquires MERIDIAN.
2001	MERIDAN introduces the new Nd:YAG laser - Microruptor V - and the diode laser - Merilas 810 Tpro.
2004	Partnerships: - Principal Shareholder: Hodel Family - Partners: Widmer Family, Haag-Streit
2006	Launch of the new Merias 532α, the most ergonomical green laser photocoagulator
2006	New Partnerships: - Principal Shareholders: Widmer Family - Partner: Haag-Streit