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New bi-toric trifocal lens performs well in study
ISTANBUL — Results of a multicenter, prospective study showed that the new bi-toric trifocal AT LISA 939MP from Carl Zeiss Meditec effectively corrects presbyopia and astigmatism after cataract and refractive lens exchange.Three centers connected with the International Vision Correction Research Centre of Heidelberg University, Germany, participated in the study.