{"id":103,"date":"2018-08-24T12:39:06","date_gmt":"2018-08-24T12:39:06","guid":{"rendered":"http:\/\/www.barnaclinic.com\/blog\/oftalmologia\/ca\/?p=103"},"modified":"2019-02-22T10:14:10","modified_gmt":"2019-02-22T10:14:10","slug":"lents-intraoculars-premium","status":"publish","type":"post","link":"https:\/\/www.barnaclinic.com\/blog\/oftalmologia\/ca\/lents-intraoculars-premium\/","title":{"rendered":"Lents intraoculars i lents intraoculars Premium. Qu\u00e8 s\u00f3n i com funcionen?"},"content":{"rendered":"

POST DEL DR. XAVIER CORRETGER<\/a><\/p>\n

Com hem vist abans, una cataracta<\/strong> \u00e9s l’opacitat del cristal\u00b7l\u00ed, que \u00e9s el responsable d’enfocar les imatges a la retina<\/strong><\/a>. Per solucionar les cataractes<\/strong> cal retirar la part que ha perdut la transpar\u00e8ncia del cristal\u00b7l\u00ed<\/strong> i substituir-la per una Lent intraocular (LIO) transparent<\/strong>, que romandr\u00e0 sempre dins de l’ull del \/ la pacient. Hi ha diferents tipus de lents intraoculars<\/strong>, en el post d’avui veurem quins s\u00f3n i com funcionen.
\n<\/span><\/p>\n

DAVANT CATARACTES PER QU\u00c8 CAL SUBSTITUIR EL CRISTAL\u00b7L\u00cd PER UNA LENT INTRAOCULAR?<\/span><\/h2>\n

En condicions normals el cristal\u00b7l\u00ed pot canviar la seva curvatura per a enforcar els objectes a diferents dist\u00e0ncies. \u00a0Aix\u00f2 permet a les persones m\u00e9s joves que no tinguin cap defecte de refracci\u00f3 previ veure-hi a totes les dist\u00e0ncies sense l\u2019ajuda d\u2019ulleres. \u00a0Amb el pas dels anys el cristal\u00b7l\u00ed envelleix i perd aquesta capacitat de canviar la seva curvatura i comencem a veure-hi malament en visi\u00f3 propera, el que s\u2019anomena presbicia o vista cansada<\/strong>. A m\u00e9s, tal i com hem comentat abans, l\u2019altre canvi que pateix el cristal\u00b7l\u00ed amb l\u2019aparici\u00f3 de les cataractes<\/strong> \u00e9s la p\u00e8rdua de la seva transpar\u00e8ncia, que provoca una disminuci\u00f3 de la visi\u00f3 i de la capacitat per a apreciar b\u00e9 els detalls de les coses que veiem.<\/p>\n

TIPUS DE LENTS INTRAOCULARS<\/span><\/h2>\n
Lents intraoculars monofocals<\/span><\/h5>\n

La majoria de les lents intraoculars<\/strong> implantades son les anomenades monofocals,<\/strong> que permeten l\u2019enfoc en un sol punt, i que habitualment s\u2019utilitzen per a la gent que desitja veure-hi b\u00e9 sense correcci\u00f3 \u00f2ptica en visi\u00f3 llunyana, per\u00f2 que necessitar\u00e0 l\u2019\u00fas d\u2019ulleres per a la visi\u00f3 interm\u00e8dia i propera.<\/p>\n

Lentes intraoculares t\u00f3ricas<\/h5>\n

Les lents intraoculars, a m\u00e9s de monofocals, poden ser tamb\u00e9 t\u00f2riques<\/strong> o no, en funci\u00f3 de si corregeixen l\u2019astigmatisme del\/la pacient. Les lents t\u00f2riques<\/strong> tenen una \u00f2ptica m\u00e9s complexa que les lents monofocals<\/strong> i, juntament amb les lents multifocals<\/strong>, constitueixen el grup de lents anomenades lents Premium<\/strong>.<\/p>\n

Lentes intraoculares multifocales<\/h5>\n

Les lents intraoculars mutifocals <\/strong>son lents amb una tecnologia especial que els permet proporcionar m\u00e9s d\u2019un punt focal, \u00e9s a dir, permeten l\u2019enfoc dels objectes localitzats a diferents dist\u00e0ncies: llunyana, interm\u00e8dia i propera. Per tant, els pacients que duen una lent multifocal<\/strong> poden ser capa\u00e7os de veure sovint els objectes a aquestes dist\u00e0ncies sense la utilitzaci\u00f3 d\u2019ulleres, o amb una utilitzaci\u00f3 d\u2019ulleres molt m\u00e9s redu\u00efda que els pacients que duen una lent monofocal<\/strong>.<\/p>\n

\n
Lents Premium: Necess\u00e0ria la millor tecnologia i professionals experimentats<\/span><\/h6>\n

Totes les\u00a0lents intraoculars Premium,<\/strong>\u00a0tant les\u00a0t\u00f2riques<\/strong>\u00a0com les\u00a0multifocals,<\/strong>\u00a0requereixen d’un c\u00e0lcul m\u00e9s complex respecte al realitzat amb les\u00a0lents monofocals.<\/strong><\/span>\u00a0Per aquest motiu,\u00a0requereixen la utilitzaci\u00f3 d’instruments sofisticats<\/a> i<\/strong>\u00a0professionals amb experi\u00e8ncia<\/strong><\/a>\u00a0en la interpretaci\u00f3 de les dades que els proporcionen aquests aparells.<\/span>\u00a0A m\u00e9s,\u00a0hi ha diversos tipus de lents intraoculars multifocals<\/strong>\u00a0i l’elecci\u00f3 d’una o altra dependr\u00e0 de factors com: l’edat, el defecte refractiu previ, les activitats m\u00e9s habituals i el treball del \/ la pacient.<\/span><\/span><\/p>\n

\n

QU\u00c8 POT ESPERAR EL PACIENT QUE S’IMPLANTA UNA LENT MULTIFOCAL?<\/span><\/h2>\n

Les\u00a0lents intraoculars multifocals<\/strong>\u00a0projecten m\u00faltiples imatges en\u00a0la retina<\/strong><\/a>\u00a0dels objectes situats a diferents dist\u00e0ncies.<\/span>\u00a0El cervell necessita un temps d’adaptaci\u00f3 i ha d’aprendre a seleccionar tota aquesta informaci\u00f3 que rep, que \u00e9s necess\u00e0ria per veure els objectes que estan a prop nostre i d’altres que s\u00f3n m\u00e9s allunyats.<\/span>\u00a0Aquesta adaptaci\u00f3 \u00e9s millor i m\u00e9s r\u00e0pida quan s’implanta la\u00a0lent intraocular multifocal en el segon ull.<\/strong><\/span>
\nTamb\u00e9 cal que el pacient entengui que, tot i que les\u00a0lents multifocals<\/strong>\u00a0proporcionen una alta independ\u00e8ncia de les ulleres, la qualitat de la visi\u00f3 no \u00e9s tan bona com quan som joves i tenim un cristal\u00b7l\u00ed normal, i que pot ser necessari l’\u00fas d’ulleres per a algunes tasques o dist\u00e0ncies concretes.<\/span>\u00a0Particularment en esfor\u00e7os visuals prolongats o en situacions amb poca il\u00b7luminaci\u00f3.<\/span>\u00a0Tamb\u00e9 \u00e9s possible que el pacient vegi halos o anell lluminosos al voltant de les llums, que solen disminuir amb els mesos quan el cervell s’adapta a la visi\u00f3 amb les\u00a0lents multifocals.<\/strong><\/span><\/p>\n

\n

\"\"“Cal que el pacient entengui que, tot i que les\u00a0lents intraoculars multifocals<\/strong>\u00a0proporcionen una alta independ\u00e8ncia de les ulleres, la qualitat de la visi\u00f3 no \u00e9s tan bona com quan som joves i tenim un cristal\u00b7l\u00ed normal”<\/span><\/h4>\n

Dr. Xavier Corretger<\/span><\/a><\/p><\/blockquote>\n

QUI POT TRIAR IMPLANTAR UNA LENT MULTIFOCAL?<\/span><\/h2>\n

Totes aquestes particularitats fan que l’\u00fas de les\u00a0lents multifocals<\/strong>\u00a0no sigui aconsellable per a tots els pacients.<\/span>El millor resultat s’obtindr\u00e0 en ulls sans, i hi ha algunes malalties, com el\u00a0glaucoma moderat<\/strong>\u00a0o sever<\/strong><\/a>\u00a0o les\u00a0malalties que afecten la m\u00e0cula,<\/strong>\u00a0que contraindiquen l’\u00fas d’aquestes lents.<\/span>\u00a0Finalment, ser\u00e0 el\u00a0cirurgi\u00e0 amb experi\u00e8ncia<\/strong><\/a>\u00a0qui aconsellar\u00e0 al pacient si la implantaci\u00f3 d’una\u00a0lent intraocular<\/strong>\u00a0\u00e9s el tractament m\u00e9s recomanable per al seu cas.<\/span><\/p>\n

\n
\n
\n
\n

<\/p>\n

VOL CONTACTAR AMB EL DR. XAVIER CORRETGER?<\/span><\/h1>\n

DEMANAR CITA<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

POST DEL DR. XAVIER CORRETGER Com hem vist abans, una cataracta \u00e9s l’opacitat del cristal\u00b7l\u00ed, que \u00e9s el responsable d’enfocar les imatges a la retina. Per solucionar les cataractes cal retirar la part que ha perdut la transpar\u00e8ncia del cristal\u00b7l\u00ed i substituir-la per una Lent intraocular (LIO) transparent, que romandr\u00e0 sempre dins de l’ull del […]<\/p>\n","protected":false},"author":2,"featured_media":101,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[63,60,62,61],"class_list":["post-103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-ca","tag-cataractes","tag-lents-intraoculars","tag-lents-multifocals","tag-lents-toriques"],"yoast_head":"\nLents intraoculars i lents intraoculars Premium. 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