{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T10:46:35Z","timestamp":1782729995579,"version":"3.54.5"},"reference-count":18,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2021,7,9]],"date-time":"2021-07-09T00:00:00Z","timestamp":1625788800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Ophthalmology"],"published-print":{"date-parts":[[2023,5]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>Evaluate the clinical outcomes of the secondary piggyback add-on IOL implantation in the ciliary sulcus for pseudophakic patients previously implanted with a monofocal IOL, who pursue a spectacle-free option after IOL surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A prospective case series including seven pseudophakic patients who underwent an in-the-bag monofocal IOL implantation. All eyes underwent a piggyback IOL implantation of the new sulcus designed A4 AddOn IOL in the ciliary sulcus as a secondary procedure for pseudophakic patients pursuing a spectacle-free option for near and intermediate distance after IOL surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Seven eyes from six patients were included in this study, from which 4 (71.43%) were female, with a mean age of 58.33\u2009\u00b1\u20093.5\u2009years (range 54\u201363; 95% CI 54.66, 62.01). The postoperative spherical equivalent at the 3-month visit was \u22120.10\u2009m\u2009\u00b1\u20090.82. Also, the UDVA was 0.11\u2009\u00b1\u20090.08 logMAR, the UIVA 0.01\u2009\u00b1\u20090.03, and the UNVA 0.01\u2009\u00b1\u20090.03 3\u2009months after their surgical procedure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>The A4 AddOn multifocal IOL\u2019s secondary piggyback implant is an efficient alternative for monofocal pseudophakic patients seeking presbyopia solutions. This sulcus-designed IOL provides an optimal visual outcome for near and distance vision.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/11206721211029474","type":"journal-article","created":{"date-parts":[[2021,7,9]],"date-time":"2021-07-09T06:22:16Z","timestamp":1625811736000},"page":"1367-1372","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Clinical outcomes of the piggyback secondary implantation of a novel multifocal lens in the ciliary sulcus: A case series"],"prefix":"10.1177","volume":"33","author":[{"given":"Gerardo","family":"Valvecchia","sequence":"first","affiliation":[{"name":"Centro de Ojos Quilmes, Quilmes, Buenos Aires Province, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guadalupe","family":"Cervantes-Coste","sequence":"additional","affiliation":[{"name":"Anterior Segment Surgery Department, Asociaci\u00f3n Para Evitar la Ceguera en M\u00e9xico I.A.P., Mexico City, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oscar","family":"Asis","sequence":"additional","affiliation":[{"name":"Hospital Perpetuo Socorro, Las Palmas de Gran Canaria, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Federico","family":"Pereyra","sequence":"additional","affiliation":[{"name":"Centro de Ojos Quilmes, Quilmes, Buenos Aires Province, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel","family":"Garza-Le\u00f3n","sequence":"additional","affiliation":[{"name":"Clinical Science Department, Science of Health Division, University of Monterrey, San Pedro Garza Garc\u00eda, Nuevo Le\u00f3n, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gast\u00f3n","family":"Gomez Caride","sequence":"additional","affiliation":[{"name":"Centro de Ojos Quilmes, Quilmes, Buenos Aires Province, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leonardo","family":"Ferlini","sequence":"additional","affiliation":[{"name":"Centro de Ojos Quilmes, Quilmes, Buenos Aires Province, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6654-5191","authenticated-orcid":false,"given":"Roberto","family":"Gonzalez-Salinas","sequence":"additional","affiliation":[{"name":"Anterior Segment Surgery Department, Asociaci\u00f3n Para Evitar la Ceguera en M\u00e9xico I.A.P., Mexico City, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,7,9]]},"reference":[{"key":"bibr1-11206721211029474","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2012.10.047"},{"key":"bibr2-11206721211029474","doi-asserted-by":"publisher","DOI":"10.1016\/S0886-3350(99)00271-0"},{"key":"bibr3-11206721211029474","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20120809-01"},{"key":"bibr4-11206721211029474","doi-asserted-by":"publisher","DOI":"10.5301\/ejo.5000156"},{"key":"bibr5-11206721211029474","doi-asserted-by":"publisher","DOI":"10.2147\/OPTH.S219738"},{"key":"bibr6-11206721211029474","doi-asserted-by":"publisher","DOI":"10.1016\/S0886-3350(01)00862-8"},{"key":"bibr7-11206721211029474","doi-asserted-by":"publisher","DOI":"10.1016\/S0886-3350(01)00967-1"},{"key":"bibr8-11206721211029474","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2009.07.014"},{"key":"bibr9-11206721211029474","doi-asserted-by":"publisher","DOI":"10.1136\/bjophthalmol-2013-304591"},{"key":"bibr10-11206721211029474","unstructured":"Rayner Intraocular Lenses. 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