Lens Toric - indlela esigqoka ngayo? Lens for astigmatism

lens Toric - okwakuvela ohlotsheni olukhethekile lwenkanyezi izihloko optical senzelwe kokulungisa umbono ka kubantu abaphethwe astigmatism. ezahlukeneyo ezinjalo elula futhi kunengqondo lisetshenziswa futhi sibe eziningi eziwusizo kuqhathaniswa ngenqubo evamile.

Izici astigmatism

Phakathi zonke izifo iso endaweni ekhethekile kunikezwa astigmatism. Lokhu kuyinkinga ephathelene zinokukhubazeka we-cornea noma lens, okuholela yokuthi umuntu elahlekelwa nokucija kanye nokucaca kombono. Ngokuvamile, astigmatism livela esemncane futhi iqhubeka kanye ukubona eduze noma ezikude kuphela.

Amaphuzu noma bendabuko izihloko onzima ezithambile optical ingahluka kancane ulungise inqubo ebukhoneni amafomu aphansi zokugula, kodwa ukuma eyindilinga lens kungathinta inkinga, uma umuntu nalesi sifo ngezinga eliphakeme. Okunjalo inketho kusiza kuphela uma ukubona eduze noma ezikude kuphela. Isixazululo kulenkinga toric lens. Indlela agqoke efana izinketho ukutshela ochwepheshe, njengoba kuyintando nezikhundla zabo ku-cornea incike ngokucacile ngeke kanjani ukubona indoda.

Umcabango

Toric lens - kuyini? ezahlukeneyo ezinjalo cishe izici ezifanayo njengoba imikhiqizo ezivamile optical, futhi kwenziwa izinto ezifanayo. Umahluko wukuthi ukuma lens uqobo, futhi isikhundla ukuthi kufanele ngizibona zibaluleke kangakanani cornea ukuze ahlinzeke nomphumela ofiselekayo. Yingenxa yalesi kukuvumela ukulungisa astigmatism ezingeni eliphakeme kuqhathaniswa ezivamile eyindilinga amathuluzi okubona kanye izibuko.

Kukhona lens kanzima futhi ezithambile toric. Njengoba ukubenza kuncike ngokuqondile kulolu hlobo. lens Soft ukhululekile ngaphezulu ukukhethwa, ukusetshenziswa kanye nokunakekelwa, ukuze abantu abaningi bathanda kubo. Naphezu kwakho konke lokhu, olukhuni imikhiqizo optical yokukhiqiza ubuchwepheshe eminyakeni yamuva ishintshile, okuyinto has nomthelela omuhle induduzo yabo ezingeni. Ngaphezu kwalokho, banalo isikhathi eside service, futhi ngokuphelele ukuhanjwa ukulungiswa astigmatism, ngenxa ukuqina yayo kanye nokugcinwa ukuma cornea. Kukhethwa incike esikuthandayo, kobukhulu izinkinga umbono, kanye kumuntu nomuntu.

Izici

Muva nje, toric contact lens yokukhiqiza ubuchwepheshe ishintshile. Lubonakala hhayi kuphela izinto, izici nokunakekela ukulungiswa ezingeni, futhi design. Kuze kube manje, izinkampani ezikhethekile ukunikeza umbala toric lens, okuyinto, ngaphezu umsebenzi walo optical, inanethonya yezimonyo.

lens Toric zenziwa kusukela hydrogel futhi abicah hydrogel, uma kuziwa izinhlobo elithambile, noma igesi izinto permeable esekelwe abicah uma kuziwa version kanzima. ukunakekelwa okukhethekile ufanelwe ngendlela ithuluzi optical. Uma embodiments bendabuko ngokuvamile eyindilinga, ukuthi babe okuthiwa toric sferotsentricheskuyu design okuvumela ngokunembe kakhudlwana astigmatism lesifanele. Ngenxa yalokhu samuntu efanayo has kanyekanye ezimbili amandla optical, okungukuthi inzuzo enkulu wajabulela lens toric. Indlela ukugqoka izinto ezahlukene ongazikhetha, tshela onguchwepheshe.

Umehluko phakathi lens eyindilinga futhi toric

lens eyisiyingi futhi toric - kuyini futhi uyini umehluko? Izinhlobo yokuqala banesibopho kokulungisa myopia noma hyperopia ke njengoba yesibili, ngenxa ezakheke, kanyekanye imisebenzi emibili-optical. Omunye inkomba yakhelwe alungise astigmatism at Meridian ezithile, kuyilapho ezinye ilawula acuity ezibukwayo.

lens Toric ngoba astigmatism kumelwe asezikhundleni eyodwa. meridians yabo kumele ngokuqinile zivumelana yokuma izimbazo yokuphambana mbono. Kuphela kuleli cala, bayoba ukwenza yonke imisebenzi yabo. Eyisiyingi contact lens has esitebeleni amandla yezokubona sonke ubuso bayo, ngakho-ke akunandaba kulokho isikhundla kwi-cornea kuba.

izinzuzo

lens Toric kunezimo eziningana ezisivunayo ukuqhathanisa nezindlela ezivamile umbono ukulungiswa.

• Ngenxa ezakheke ngayo, bona kanyekanye imisebenzi emibili: umbono ilungile futhi ukuqeda astigmatism isici.
• Zinikeza i indawo eyiyo ku-cornea ngenxa ifomu bese ezengeziwe "amadivaysi."
• ezahlukeneyo ezinjalo efanelekayo kulabo abahlushwa hhayi kuphela astigmatism, kodwa futhi bakwamanye corneal iyagula.
• lens okunjalo ongenza indima lens iso uma kwenzeka ukuthi iye yenziwa eyohlinzwa ukususa cataract. Ngenxa yale njongo, a toric ekhethekile lens intraocular.

Lapho esetshenziselwa umbono ukulungiswa izihloko optical uhlobo kanzima, banayo izinzuzo ezengeziwe, phakathi lapho kufanele kuqashelwe lokhu okulandelayo: ezingeni eliphakeme oxygen cornea, olunembile umbono ukulungiswa, ukungabi khona umphumela "izinyembezi" futhi ukumelana amaprotheni sebethule. Ukuqina kanye isikhathi eside ukusetshenziswa - liphinde izinzuzo ezibalulekile ngendlela elukhuni lens toric. Intengo ongakhetha ezinjalo lisetudlwana kuka umnene futhi ngokuvamile zokhahlamba kusuka ruble 300 kuya ku-3000.

amaphutha

lens Toric babe bokwenza efanayo izinhlobo ezithambile ziqinile ezivamile. Ngokuphathelene Uhlobo lokuqala amadivayisi optical, kuba wokuqala nomkhulu kunabo bonke:

• esifushane uma kuqhathaniswa ukusetshenziswa;
• ingathiyeki ukufinyelela-mpilo ukuze cornea, lens esithambile ngoba ihlanganisa cishe ngokuphelele;
• Ukwandiswa izinyembezi, ngezinye izikhathi sidinga ukusetshenziswa amathonsi ekhethekile noma ijeli;
• indawo ezifakwa lens amaprotheni kusukela iso, okungase kubangele ukusabela iguliswa nabanye.

Ngokuphathelene amathuluzi eqinile bokwenza alandelayo ayatholakala:

• kuyinkimbinkimbi futhi Ukukhetha ezinde lens toric;
• ezingeni okuphansi wenduduzo isidingo ukuzivumelanisa cornea.

Kubalulekile wazi isikhathi esisodwa. Kungakhathaliseki uhlobo value - kungenye ethile, ezithinta lens toric. Intengo ongakhetha ezinjalo iphezulu kakhulu, kungakhathaliseki ukuthi ziyizihlalo esithambile noma esiqinile. Lokhu kungenxa yokuthi bobabili benenkinga izinkinga ukubona eduze noma ezikude, futhi astigmatism isici siqedwa. Ngaphezu izindlela ezikhethekile lens ku-cornea kusetshenziswa indawo efanele, okuyinto sithinta intengo.

Kanjani ukukhetha?

Ukukhethwa lens toric kufanele yenziwe kudokotela wezifo zamehlo abanolwazi, ngoba kubalulekile ukucabangela amandla ezimbili optical. Kubalulekile futhi ukucacisa uhlobo - esithambile noma esiqinile. Inketho yokuqala ngokunethezeka, kodwa yesibili kunezinzuzo ezengeziwe. Uma umuntu lukhetha lona umqondo kanzima, kubalulekile ukukhumbula ukuthi mkhiqizo kushintshwe i-cornea, ngakho ngemva uphethwe isidingo sokulinda kuze kube sekudlula kuyi-lens eqinile nakho ngeke kusize zizokwenziwa ngamunye.

Ngaphezu imisebenzi yayo optical, ezahlukeneyo enjalo inanethonya zokuhlobisa. Ngenxa yalezi zinjongo, ungasebenzisa anemibala lens toric. Bayoba umbono lesifanele hhayi kuphela, kodwa futhi kancane ukushintsha ukubukeka kwabo.

izindlela ukukhiya

Ngokungafani eyindilinga, lens toric uyokwenza kakhulu ngempumelelo kuphela uma kahle kahle. Esimweni esinjalo ingxenye cylindrical uzosebenzisana elikhulu aspherical cornea zone. Lokhu kuzakwenza i umphumela yokulungiswa astigmatism, ezithinta lens toric. Njengoba ukuwohloka okufana enjalo kuzoncika izici ukukhiya yayo indlela. Zabo ziyisiliva eziningana:

• isikebhe sizinze Prismatic. Ukuba khona nje iqhubu encane endaweni ephansi lens. Ngaphansi kwethonya gravity kudivayisi optical ingena isikhundla lesifanele.
• Periballast. Kulokhu, i-lens has a esifundeni luthe ukuqina phezulu futhi phansi, okuyinto zitholakala ngaphansi nezinkophe. Lokhu kukuvumela ukuba uyigcine isikhundla.
• Ukwenza i-clip. Ngenxa yale njongo phansi lens anqunywe inxenye ethile, futhi nale Imi kuxhunywe engxenyeni engezansi kwekhulu.

Ukuze uthole nenkanuko edlulele olunembile kakhulu kanyekanye abakhiqizi abaningi ukusebenzisa eziningana zalezi zindlela.