Abafundi bezikolo zaseprayimari nezamabanga aphakamileyo bazakuqala iiholide zabo zasehlotyeni kwiveki nje enye.Iingxaki zokubona kwabantwana ziya kuphinda zibe yingqwalasela yabazali.
Kwiminyaka yakutshanje, phakathi kweendlela ezininzi zokuthintela kunye nokulawula i-myopia, i-lens defocusing, enokunciphisa ukuphuhliswa kwe-myopia, iye yanda ngakumbi nangakumbi phakathi kwabazali.
Ngoko ke, unokukhetha njani iilensi ze-defocusing?Ngaba zifanelekile?Ngawaphi amanqaku omawuqwalaselwe kwi-Optometry?Emva kokufunda lo mxholo ulandelayo, ndicinga ukuba abazali baya kuba nokuqonda okungcono.
Yintoni iilensi zokususa ujoliso?
Ngokuqhelekileyo, i-lens defocusing yi-microstructured spectacle lens, eyenzelwe ukuba iqulethe indawo ephakathi kunye ne-microstructured area, enzima kakhulu ngokwemilinganiselo ye-optical parameters kwaye ifuna ngakumbi ngokufanelekileyo kuneembonakalo eziqhelekileyo.
Ngokukodwa, indawo ephakathi isetyenziselwa ukulungisa i-myopia ukuqinisekisa "umbono ocacileyo", ngelixa ummandla we-peripheral wenzelwe ukuvelisa i-myopic defocus ngokusebenzisa i-optical design ekhethekileyo.Izibonakaliso ze-myopic defocus ezenziwe kule mimandla zinokunqanda ukukhula kwe-eye axis, ngaloo ndlela kunciphisa ukuqhubela phambili kwe-myopia.
Uthini umahluko phakathi kweelensi eziqhelekileyo kunye neelensi zokungagxininisi?
Iilensi eziqhelekileyo ze-monofocal zijolise kumfanekiso wombono ophakathi kwi-retina kwaye zinokulungisa kuphela umbono, zivumela umntu ukuba abone ngokucacileyo xa ezinxibile;
Iilensi zokungagxininisi azigxininisi kuphela kumfanekiso wombono osembindini kwiretina ukuze usivumele ukuba sibone ngokucacileyo kodwa zikwagxininise iperiphery ukuya okanye phambi kweretina, idala iperipheral myopic defocus ethi icothise ukukhula kwemyopia.
Ngubani onokusebenzisa iilensi zokungagxininisi?
1. I-Myopia engadlulanga ii-degrees ze-1000, i-astigmatism engadlulanga ii-400 degrees.
2. Abantwana kunye nolutsha olubonayo lukhula ngokukhawuleza kwaye lunezidingo ezingxamisekileyo zokuthintela nokulawula i-myopia.
3. Abo bangafanelekanga ukunxiba iilensi ze-Ortho-K okanye abafuni ukunxiba iilensi ze-Ortho-K.
Qaphela: Izigulana ezine-strabismus, umbono ongaqhelekanga we-binocular, kunye ne-anisometropia kufuneka zivavanywe ngugqirha kwaye zicinge ukuba kufanelekile.
Kutheni ukhethaukususa ugxininisoiilensi?
1. Iilensi zokungagxininisi ziyasebenza ekulawuleni i-myopia.
2. Inkqubo yokufaka i-lens defocusing ilula kwaye akukho mahluko omkhulu kwinkqubo yoviwo ukusuka kuleyo yeelensi eziqhelekileyo.
3. I-lens edibeneyo ayidibanisi ne-cornea yeso, ngoko akukho ngxaki yosulelo.
4. Xa kuthelekiswa neelensi ze-Ortho-K, iilensi zokungagxininisi kulula ukuzigcina kwaye zinxitywe, iilensi ze-Ortho-K kufuneka zihlanjwe kwaye zibulawe iintsholongwane ngalo lonke ixesha zikhutshwa kwaye zibekwe kwaye zifuna izisombululo zokhathalelo olukhethekileyo lokuzinyamekela.
5. iilensi zokungagxininisi zinexabiso eliphantsi kuneelensi ze-Ortho-K.
6. Xa kuthelekiswa neelensi ze-Ortho-K, iilensi zokungagxininisi zisebenza kuluhlu olubanzi lwabantu.
Ixesha lokuposa: Jun-26-2024