1.Ho ea ka boemo bo tsitsitseng ba lense ea intraocular ka leihlong, e ka aroloa ka kamoreng e ka pele ea lense ea intraocular le lense ea ka morao ea kamoreng ea intraocular.Anterior chamber intraocular lens (IOL) hangata e kenngoa ka kamoreng e ka morao ka lebaka la mathata a mangata a ka morao.
2.Classification ho ea ka thepa ea lense ea intraocular
A. Polymethylmethacrylate (PMMA): polymethylmethacrylate ke thepa ea pele e sebelisoang ho etsa lense ea intraocular.Ke thepa e ratoang bakeng sa lense e thata ea intraocular.E na le ts'ebetso e tsitsitseng, boima bo bobebe, ponaletso e ntle, 'me e ke ke ea senyeha ke karabelo ea oxidation ea bioloji ea' mele.Lenane la refractive ke 1.49.Phoso ke hore ha e hanyetsane le mocheso o phahameng le khatello e phahameng ea disinfection.Hajoale, khase ea ethylene oxide e sebelisoa haholo bakeng sa ho bolaea likokoana-hloko, 'me ho tenyetseha ha eona ho fokola.Ho na le mefuta e 'meli ea ts'ebeliso ea bongaka: e' ngoe ke lense ea intraocular le ho hatelloa ka lisebelisoa tsa PMMA ka nako e le 'ngoe, e bitsoang sengoathoana se le seng;Ea bobeli, karolo ea optical ea lense e entsoe ka PMMA, 'me loop ea tšehetso e entsoe ka polypropylene, e bitsoang likotoana tse tharo.
B. Silicon gel: ke thepa e ka sehloohong ea lense e bonolo ea intraocular, e nang le botsitso bo botle ba mocheso, khatello e phahameng ea ho belisa likokoana-hloko, sebopeho se tsitsitseng sa limolek'hule, ho hanyetsa botsofali hantle, ho lumellana hantle le biocompatibility, bonolo le elasticity.E ka kenngoa ka ho seha hanyenyane.Lenane la refractive le ne le tloha ho 1.41 ho isa ho 1.46.The go tlhoka mesola ke mafutsana toughness, feto-fetoha tlas'a matla a mechine, ho le bonolo ho hlahisa phello electrostatic le bonolo ho monya litaba tse tsoang linaheng tse ling.
C. Hydrogel: poly (hydroxyethyl methacrylate) ke thepa ea hydrophilic, e nang le metsi a 38% - 55%, ho fihlela ho 60%, botsitso bo botle, biocompatibility e ntle, ho hanyetsa mocheso o phahameng le boima bo boholo.Lense ea intraocular e ka felloa ke metsi 'me ea kenngoa.Ka mor'a ho khutlisetsoa metsi, bonolo ba eona boa tsosolosoa 'me bolelele ba eona bo eketseha ka 15%.Kaha e na le metsi a mangata, li-metabolite tsa intraocular li ka kena ka hare 'me li khomarela tšilafalo, tse amang pepeneneng.
D. Acrylate: ke copolymer e entsoeng ka phenylethyl acrylate le phenylethyl methacrylic acid.E na le litšobotsi tse tšoanang tsa optical le biological joaloka PMMA, empa hape e na le bonolo.Lenane la refractive ke 1.51, lense ea intraocular e tšesaane, 'me lense e phuthoang ea intraocular e ka hola ka bonolo le butle.
Nako ea poso: Aug-26-2022
