TeknụzụỊkekọrịta |Nhazi nke oghere intraocular

1.Dịka ebe a na-edozi anya nke oghere intraocular dị na anya, enwere ike kewaa ya n'ime oghere oghere intraocular nke dị n'ihu na oghere intraocular nke dị n'azụ.A na-akụnye oghere oghere dị n'ihu (IOL) n'ime ime ụlọ dị n'azụ n'ihi ọtụtụ nsogbu ndị a gachara.

2.Classification dị ka ihe nke intraocular oghere
A. Polymethylmethacrylate (PMMA): polymethylmethacrylate bụ ihe mbụ eji emepụta oghere intraocular.Ọ bụ ihe kachasị amasị maka oghere intraocular siri ike.Ọ nwere arụmọrụ kwụsiri ike, ịdị arọ dị arọ, nghọta dị mma, ọ gaghị eweda ya ala site na mmeghachi omume oxidation nke anụ ahụ.Ndekọ refractive bụ 1.49.Ọdịmma ya bụ na ọ naghị eguzogide oke okpomọkụ na nrụgide nrụgide dị elu.Ka ọ dị ugbu a, a na-ejikarị ethylene oxide gas eme ihe maka nsị, na mgbanwe ya adịghịkwa mma.Enwere ụdị ọgwụgwọ abụọ dị iche iche: otu bụ ihe nkedo lens intraocular ma tinye ihe PMMA n'otu oge, nke a na-akpọ otu ibe;Nke abụọ, akụkụ anya anya lens bụ nke PMMA, na nkwado nkwado bụ nke polypropylene, nke a na-akpọ iberibe atọ.
B. Silicon gel: ọ bụ isi ihe nke oghere intraocular dị nro, na-enwe nkwụsi ike dị mma, disinfection na-esi ísì dị elu, usoro ihe ọkụkụ siri ike, ezigbo nkwụsị nke ịka nká, ezigbo biocompatibility, nro na elasticity.Enwere ike ịkụnye ya site na obere mbepụ.Ntụgharị ntụgharị sitere na 1.41 ruo 1.46.Ihe ọghọm ndị na-adịghị mma bụ ike siri ike na-adịghị mma, mgbanwe n'okpuru ike arụ ọrụ, dị mfe ịmepụta mmetụta electrostatic ma dị mfe itinye ihe ndị mba ọzọ.
C. Hydrogel: poly (hydroxyethyl methacrylate) bụ ihe hydrophilic, nke nwere mmiri dị n'ime 38% - 55%, ruo 60%, nkwụsi ike dị mma, ezigbo biocompatibility, elu okpomọkụ na-eguzogide na nnukwu ike.Enwere ike ịkpọsa oghere intraocular ma tinye ya.Mgbe rehydrates, a na-eweghachi ịdị nro ya na ogologo ogologo ya na-abawanye site na 15%.N'ihi na ọ bara ụba na mmiri mmiri, metabolites intraocular nwere ike ịbanye n'ime ime ma na-agbaso mmetọ, na-emetụta nghọta.
D. Acrylate: ọ bụ copolymer mejupụtara phenylethyl acrylate na phenylethyl methacrylic acid.O nwere otu ihe anya na ihe ndu dị ka PMMA, ma nweekwa nro.Ndekọ ntughari bụ 1.51, oghere intraocular dị gịrịgịrị, na oghere intraocular apịaji nwere ike gbasaa nro na nwayọ.