Trade unions are hoping that confirmation of a new investment at the Bausch & Lomb plant in Waterford may save some of the 200 planned redundancies there.
Staff recently agreed to the voluntary lay-offs and pay cuts for remaining workers in order to save the contact lens facility from closure.
Today B&L have announced a new investment in its production systems in the city.
SIPTU representative Alan O'Leary says it may in time lead to fewer redundancies.
He said: "We did advise the senior management today that, while the intention was to cut up to 200 jobs, we would have to engage with the company to look at efficiencies and co-operation with flexibilities in order to minimise that figure of 200.
"The company were receptive to look at that."