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dc.rights.licenseAll rights reserveden_US
dc.contributor.advisorMorales, José A.
dc.contributor.authorVargas Lugo, Bethzaily
dc.date.accessioned2022-07-06T17:57:07Z
dc.date.available2022-07-06T17:57:07Z
dc.date.issued2022
dc.identifier.citationVargas Lugo, B. (2022). Monomer’s Residuals Test Elimination for Soft Acrylic Buttons at Polytechnic University of Puerto Rico [Unpublished manuscript]. Graduate School, Polytechnic University of Puerto Rico.en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12475/1627
dc.descriptionDesign Project Article for the Graduate Programs at Polytechnic University of Puerto Ricoen_US
dc.description.abstractIn the cataract surgery, the natural lens in the eye is replace with an Intraocular Lens. Five monomers (EA/EMA, TFEMA, EGDMA, UV Chr) are mixed to produce the soft acrylic lens. Residual monomer testing measures the amount of monomer and crosslinker not polymerized or removed by annealing process. During the last years residual monomer testing become a high-cost test due to equipment maintenance, chemical purchases, and spare parts cost. Historical data was collected from the residual testing for Optiblue from January 2019 up to May 2020and Opal from June 2018 up to May 2020. DMAIC methodology was used in this analysis. Process Performance Index (Ppk) value varies from 5.62 to 49.52 for Opal and 2.09 to 30.00 for Optiblue, which confirm annealing process is a capable and is in statistically control. Trend analysis was performed, and no negative trend was observed. Therefore, the monomer residual test can be eliminated. KeyTerms⎯ Residual Monomer Testing, Opal, Optiblue, Process Performance Index.en_US
dc.language.isoenen_US
dc.publisherPolytechnic University of Puerto Ricoen_US
dc.relation.ispartofManufacturing Competitiveness;
dc.relation.ispartofseriesSpring-2022;
dc.relation.haspartSan Juanen_US
dc.subject.lcshSix sigma (Quality control standard)en_US
dc.subject.lcshPolytechnic University of Puerto Rico--Graduate students--Researchen_US
dc.subject.lcshPolytechnic University of Puerto Rico--Graduate students--Postersen_US
dc.subject.lcshMonomers
dc.subject.lcshIntraocular lens industry
dc.titleMonomer’s Residuals Test Elimination for Soft Acrylic Buttons at Polytechnic University of Puerto Ricoen_US
dc.typeArticleen_US
dc.rights.holderPolytechnic University of Puerto Rico, Graduate Schoolen_US


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