Ama-lens othintana nabo abonakala maduzane, kodwa kakade angene ngokuqinile empilweni yethu. Kuningi okwaziwa ngabo, kodwa imibono iphikisana kakhulu. Abanye bathi i-lensi ayilondekile, abanye-ukuthi lokhu kuyitholile kwangempela kumuntu wanamuhla. Kodwa kulesi sihloko sizoxoxa ngalokho ophthalmologists abakushoyo mayelana nama-contact lens. Abachwepheshe baphendula imibuzo evame ukubuzwa ngale ndaba.
Ayini ama-lens okuxhumana nabo ngokujwayelekile futhi akwenziwe ngani?
Amalensi oxhumana nawo ayilensi encane. Isimiso sabo sifana nesilazi sezibuko ezivamile - zenzelwe ukulungisa umbono. Nakuba ama-lens amuva nje ashintshwe ngaphandle kokushayela i-diopters - ngenxa yamehlo enempilo. Bashintsha umbala wamehlo, babakhanye futhi baze "badonse" emehlweni emidwebo ehlukahlukene. Lapho ama-lens enziwe nge-plexiglass, kodwa manje esetshenziselwa ukukhiqizwa kwawo, ama-polymel ase-hydrogel asetshenziswa. Lezi zinto zakhiwo eziyinkimbinkimbi kakhulu, ezitholakala ngesikhathi senqubo eyinkimbinkimbi. Kulezi, manje wenze amalensi ahlukene, kodwa igama lendabuko elithi "contact lens" lihlala.
Ingabe ngidinga ukuhlolwa okukhethekile ngaphambi kokugqoka amalensi?
Ukuhlolwa okunjalo kokuqala akudingeki. Udokotela oqoqa ama-lensi wesiguli uqhuba ukuhlolwa kombono usebenzisa ikhompyutha, bese ehlola ubuciko obubonakalayo ukuze aqondiswe kangcono. Ukuhlola okubonakalayo kwe-conjunctiva ne-cornea yeso. Bese ukhetha ukuthi kungenzeka yini ukusebenzisa amalensi oxhumana nabo.
Kungcono futhi uma i-ophthalmologist yakho ikhetha usayizi we-lens. Kumelwe ahlale ebeka amehlo akhe, kodwa ngesikhathi esifanayo i-cornea kufanele iphefumule. Ngokuphambene nenkolelo evamile, i-lens ene-diopter ebuthakathaka iphephile kakhulu emehlweni. Nakuba ngabe i-lensi ivulekile kakhulu iso - lokhu kungabangela ukungakhululeki.
Ingabe kukhona ukuphikisana okuphelele okugqoke amalensi?
Azikho ukuphikisana okuphelele. Akunconywa ukugqoka amalensi oxhumana nabo nabantu abanesimo esibi se-eye eye syndrome. Ngalesi sifo kukhona ukwephulwa kwemfihlo yezinyembezi, futhi iso alinakulungiswa kahle. Kunokuphikisana okuningi okujwayelekile. Kuzo, i-ophthalmologists ihlanganisa isifo sikashukela kanye nezifo ezithathelwanayo. Futhi, ama-lens awakwazi ukugqoka ngesikhathi samabhanta abandayo - ebusweni be-mucous kalula angene ngaphakathi kwesakhiwo esibucayi se-lens. Khona-ke awukwazi ukuwagqoka ngisho noma uhamba kahle.
Ungathintana nama-lensi kunconywa yi-ophthalmologist?
Kunconywa ukugqoka amalensi okuxhumana esikhundleni sezingilazi uma umehluko phakathi kwesinye nelinye iso lingaphezu kuka-4 diopters. Lokhu kungenzeka, isibonelo, emva kokuhlinzwa ukukhipha i-cataracts. Ngesikhathi esifanayo, kunzima kakhulu ukuthatha izibuko, futhi ngisho nokukhethwa ngempumelelo kwelazi zibuko ngokushesha ukhathele. Futhi ama-lens axhumene nawo awabangeli imiphumela emibi. Ngokuvamile amalensi oxhumana nawo atuswa ukuba asetshenziswe esimweni lapho kubalulekile ukuhlukanisa i-cornea emvelweni. Lokhu kwenzeka ngesifo se-corneal emva kokulimala noma ukuhlinzwa - amalensi oxhumana nawo adlala indima ekhethekile kulokhu. Ngaphezu kwalokho, ngezilonda zamehlo ezingenakulinganiswa noma ezitholakalayo, ama-lens axhumene nawo akwazi ukwenza imisebenzi ebalulekile yezithokozi. Benza amehlo aseduze ngokubonakala kwawo ngokomzimba.
Kungaba khona yini ukungezwani komzimba kokuqukethwe okuvela kulo lensi?
Cha, akunjalo. Ngokuvamile abantu benza iphutha ukuthatha ukusabela kwe-allergen ukuze lens liquid for imizimba kuya lens ngokwabo. Kuyinto uketshezi equkethe ezinye izinto ezingabangela izifo. Ikakhulukazi iziphuzo ezisetshenziselwa ukuhlanza i-lens. Ezimweni ezinjalo, mane ubeke esikhundleni se-liquid ngezinye.
Ingabe ukufakwa nokukhishwa kwama-contact lens kungaholela ekutheleleni kwamehlo kanye ne-conjunctivitis?
Yiqiniso, ezigulini ezingenamthetho ezikhohlwa ukugeza izandla zabo ngaphambi kokusebenzisa amalensi, hhayi kuphela ukuhlangana kwe-conjunctivitis. Ngokuvamile, ngokuphambene nalokho, uma ama-lens agcinwa kahle, agcinwa ngendlela efanele - akwazi ukuvikela ngokumelene nezifo zeso. Lokhu kubangelwa ukuhlanzeka kwamehlo ngamagciwane okusetshenziselwa ukubulala amagciwane asetshenziselwa ukusiza amalensi. Kodwa kulabo abasebenzisa ama-lens othintana nabo, kukhona usongo oluvame kakhulu - izifo ezithathelwanayo ze-cornea. Lokhu kulandela kumabonakude angase akhiwe kwi-cornea. Izindawo ezingaphandle kwe-epithelium zingaba yisango lokutheleleka. Kodwa ngokugcina yonke imithetho yokuhlanzeka, lokhu, njengokubusa, akukwenzeka.
Ngidinga isikhathi esingakanani ukujwayela amalensi?
Kunezinhlobo ezimbili zamalensi: ezithambile futhi ezinzima. Ama-lens aso agqoke abantu abaningi, isikhathi sokujwayela iso sincane kakhulu. Esikhathini esithile emva kokuqala kokugqoka abantu nje ukukhohlwa ukuthi ukhona. Ukuguquguquka ngokuvamile kuthatha amahora ambalwa kuya ezinsukwini ezimbalwa. Ngama-lens aqinile kunenkinga ethile - ukulutha umlutha kungaba isikhathi eside - kuze kube amasonto amaningana. Kodwa kubo kulula ukuphatha iziguli ezingenalwazi - azikwazi ukukhala izinyembezi nokukhubazeka.
Ngingahlala isikhathi esingakanani ngigqoke amalensi?
Eqinisweni, kancane, ngcono. Izinhlobo eziningi zamalensi okuxhumana kufanele zisuswe ebusuku. Ezinye zingagqoka isonto, imini nobusuku. Kuyinto elula phakathi nohambo, ukuhamba ngezinyawo ukuya emvelo, ukuhamba. I-lens ithatha konke ukungcola okuvela emvelweni, njenge-sponge. Abanciphisa i-lens, kancane kancane abakwazi ukungenisa ukungcola emoyeni. Kodwa ngisho noma i-lens ingagqoke isonto noma ngaphezulu ngaphandle kokuyisusa, kusadingeka ukuthi ususe kuzo ukucubungula. Kungcono ngaso sonke isikhathi ukusebenzisa izintambo zokunakekelwa kwazo, ukwazi ukususa iningi lezingcola. Ngaphezu kwalokho, okufishane isikhathi sokugqoka, kungcono. Kuthengiswa kakade kunamalensi wosuku olulodwa. Ngeshwa, namanje ayabiza kakhulu. Ngakho-ke, ochwepheshe batusa ukukhetha i-lens, isikhathi sokugqoka okungaphezu kwezinyanga ezingu-3.
Amalensi angakuvikela yini emisebeni yelanga?
Yebo! Kukholelwa ukuthi esinye sezici eziyingozi ngenxa ye-senile macular degeneration (glaucoma) yimisebe ye-ultraviolet. Ukugqoka ama-lensi, kuphelisa umphumela we-UV futhi kuvikela kancane amehlo ekusukeni kwe-retina.
Ingabe owesifazane angagqoka amalensi ngesikhathi sokukhulelwa?
Ngenxa yezinguquko ze-hormonal ngesikhathi sokukhulelwa, ukwakhiwa kwezinguquko zezinyembezi. Owesifazane angase aqale ukuhlushwa kabi ngamalensi okuxhumana naye, ayejwayele ukugqoka kahle ngaphambili. Kulesi simo, ochwepheshe batusa ukushintshwa kwamalensi amancane. Futhi esikhathini esifanele ngemva kokubeletha, ukusetshenziswa kwezingilazi ezivamile kuyanconywa.
Kungenzeka yini, ukusebenza njalo kwi-computer, ukuba ube nama-contact lensi?
Uma sisebenza kwikhompyutheni, sibheka kancane kancane, ngakho-ke ama-lens asukuma ngokushesha kunokuba avamile. Ngakho-ke, kufanele sikhumbule njalo ukuthi ngaphezu kwalokho sibheka amehlo akho ngezikhathi ezithile! Ngaphezu kwalokho, udinga ukusebenzisa le njongo yamanzi emanzini. Ukusetshenziswa okuvimbela amaconsi anjalo kuyasiza ngisho nabantu abangagqoki amalensi oxhumana nabo.
Indlela yokusebenzisa amalensi ngendlela efanele?
Kukhona imithetho eyinhloko, ekhulunywe yi-ophthalmologists - ngamalensi okuxhumana kuyadingeka ukuba ubambelele kubo.
1. Ngaphambi kwesisekelo, geza ama-lensi bese ugeza izandla zakho ngokugcwele.
2. Sebenza ngamalensi phezu kwendawo ehlanzekile nebushelelezi engaphazamisi amalensi uma ewa.
3. Ukuze ugweme ukudideka phakathi kwama-lens, sebenzisa ukususa i-lens efanele.
4. Thinta ama-lens ngesandla sakho, ugweme ukuxhumana nezipikili.
5. Ungagcoki ama-lensi oxhumana nabo ngokunyakaza okuyisimungulu, kuphela okukodwa.
6. Ngaphambi kokuba ufake i-lens, hlola uma kunamanzi ngokwanele, ngokusobala.
7. Gwema ukuthintana nesepha kanye ne-makeup.
8. Ungasebenzisi ukhilimu omuncu noma ukhilimu ezandleni ngaphambi kokugqoka ama-lens.
9. Dedisa i-lens nsuku zonke noma emva kokususwa ngalunye emehlweni.
10. Gcina i-lens kuphela kwisitsha esikhethekile esinokuhlanza amanzi.
11. Hlukanisa iziphuzo ezisetshenzisiwe emva kokusetshenziswa kwe-lensi bese uphinde ube nezitsha ezintsha.
12. Emva kokufaka amalensi oxhumana naye, ukwakheka kungenziwa, kodwa kufanele ugweme ukubhala phansi kweso lakho.
13. Khipha kuqala ukwakheka, bese ususa i-lens.
Nini ukusebenzisa amalensi?
Ngesikhathi ama-diopter ngeso elilodwa likhulu, futhi kwenye - encane kakhulu. Ukuphakama komuntu kungamelana nezindiza ezine zokuhluka phakathi kweso nelinye. Uma iso elilodwa linama-diopter angu-7 kanti elinye liphilile - udinga ukulungisa amehlo kweso elilodwa (ukuze ubone umbono oqondile we-binocular.) Ngosizo lwezibuko lokhu akunakwenziwa. Nakhu futhi uzosiza othintana nama-lens.
Ngemuva kokusebenza ukuze ususe i-cataract esweni elilodwa ngokufakwa kwesilwane se-intraocular, kuzodingeka uguqulwe ama-diopter angu-10. Ama-lens okuxhumana kuphela angakwazi ukukhokhela lesi siphene.
Ngemuva kwezinkinga zokubeletha noma ukuhlukumezeka ezinganeni - ngaphandle kokuthi izilingo zifakiwe. Khona-ke, kungenzeka ukuthi i-amblyopia izokhula. Ngokusetshenziswa kwama-lens oxhumana naye ungabona amehlo omntwana aphilile.
Nge-okuthiwa i-cone cornea, lapho i-cornea ilula futhi ifakwe ekupheleni. Uma i-cornea cone ayikwazi ukulungiswa ngezibuko, i-lens ingayiphatha.
Nge-keratopathy ye-bullous - isifo esakhiwe amabhaltri ku-cornea. Ukuphela kwakhe kwemizwa kuvulwe ngesikhathi esifanayo. Lesi simo esibuhlungu kakhulu. Hlanganisa i-cornea ngamalensi oxhumana nawo anomumo okhethekile futhi ungacasuli amehlo.
Ngemuva kokukhipha umzimba wangaphandle kwi-cornea, ungakwazi ukugqoka amalensi oxhumana nabo esikhundleni samagilabu ama-bulky. Ubuhlungu emva kwalokhu buyancipha kakhulu, kanti isiguli sibona iso elilimazekile.
Ngemva kokushisa kwamakhemikhali nokushisa, amalensi oxhumana nawo asiza iso ukuba liphulukise ngokushesha, futhi ubuhlungu buyoba buncane.