Ake sifunde kancane ngokuhlolwa kwe-Keratometry, okulinganisa ukugoba kwamehlo.

Uma wake wahlolwa amehlo, cishe uke wambona udokotela ebuka amehlo akho futhi esebenzisa amathuluzi ahlukahlukene ukuwahlola. Ngezinye izikhathi sizibuza, "Kuyini lokhu okubhekayo futhi?" Okunye ukuhlolwa kwamehlo okubaluleke kangaka kubizwa ngokuthi i-Keratometry. Namuhla, sizoxoxa ngokuthi kuyini, kungani kwenziwa, nokuthi kwenziwa kanjani.

Kuyini i-Keratometry?

Kalula nje, i-keratometry iyisivivinyo esilinganisa ukugoba kwemvelo kwe-cornea , ingxenye esobala, eyindilinga yangaphambili yeso lakho. I-cornea ifana nesembozo esibonakalayo phezu kwamehlo ethu. Ukugoba kwayo okufanele kubaluleke kakhulu ekuboneni okucacile.

Yini etholwa yilolu vivinyo lwe-keratometry?

Lokhu kuhlolwa kunquma kakhulu ukuthi unesifo esibizwa ngokuthi i-astigmatism. I-Astigmatism iyiphutha elivame kakhulu lokubona izinto ngendlela engabonakali kahle elibangela ukubona okufiphele.

Cabanga nje, iso eliphilile livame ukuba yindilinga njengebhola lezinyawo. Bese kuthi, lapho ukukhanya kungena esweni, kugxile endaweni eyodwa bese sibona kahle. Kodwa iso lomuntu one-astigmatism, okungukuthi, i-cornea, lifana nebhola le-rugby, noma lide kancane njengengemuva lesipuni, noma ligobile kakhulu ohlangothini olulodwa. Bese kuthi , lapho ukukhanya kungena esweni, akugxili endaweni eyodwa, bese umbono uba lufifi. Lokhu kuhlolwa kwe-keratometry kulinganisa ukugoba kwe-cornea.

Lolu vivinyo lwe-keratometry lwenziwa kanjani? Kulula kakhulu!

Lokhu ukuhlolwa okusheshayo kakhulu futhi okungenabuhlungu. Udokotela wakho wamehlo angakwenza ehhovisi lakhe. Awudingi ukubekela eceleni usuku noma isikhathi esikhethekile salokho. Kungenziwa ngesikhathi sokuhlolwa kwamehlo kwakho okuvamile, noma kungenziwa ngokwehlukana uma udokotela wakho esola ukuthi une-astigmatism.

Futhi, uma uzogqoka ama-contact lens esikhundleni sezibuko, noma uma ulungiselela ukuhlinzwa kwe-cataract, nakanjani uzoba nalolu vivinyo lwe-keratometry.

Manje ake sibone ukuthi lokhu kwenziwa kanjani. Udokotela usebenzisa idivayisi ebizwa ngokuthi i-keratometer . Ibukeka njenge-telescope kancane. Kodwa-ke, ayibheki izinkanyezi ezikude, kodwa ibheka amehlo akho eduze kakhulu. Nazi izinyathelo zokuhlola:

1. Uzocelwa ukuthi uhlale phansi, futhi i-keratometer inokusekela isilevu sakho nendawo yokubeka ibunzi lakho . Njengoba ubeka ikhanda lakho kuyo, udokotela uzolungisa idivayisi ukuze ilingane kahle neso lakho.

2. Bese utshelwa ukuthi ubheke ngaphakathi kwedivayisi. Kufana nokubheka ngezibuko. Ngezinye izikhathi utshelwa ukuthi uvale elinye iso elingahlolwa.

3. Udokotela ukutshela ukuthi yini engaphakathi kwedivayisi.Bacele ukuthi babheke isithombe. Ngokuvamile sinezindilinga ezintathu, noma into efana nethagethi enophawu lokuhlanganisa kanye nophawu lokususa.

4. Ngemuva kwalokho, udokotela ulawula kancane kancane idivayisi , ehambisa izinhloso nxazonke, eletha izimpawu ezinhle endaweni lapho zithintana khona.

5. Uma inombolo isifikile, udokotela uqopha izilinganiso. Ngemuva kwalokho, ulungisa elinye iso ledivayisi bese ehlola lelo liso ngendlela efanayo.

Cabanga ngakho njengokulungisa ukugxila kwekhamera. Udokotela ubukele ukuqinisekisa ukuthi izithombe zihambisana nomugqa we-cornea yakho.

Uyabona? Kulula kakhulu, akunjalo? Ungaqeda lolu vivinyo ngemizuzu embalwa nje.

Ingabe kukhona ukungahleleki noma izingozi kulokhu?

Cha, akukho bungozi. Ukukhanya okuvela ku-keratometer kungase kukhanye kancane uma ubheka, kodwa ngeke kulimaze amehlo akho noma umbono wakho.

Kodwa kukhona into eyodwa encane. Okusho ukuthi, lolu vivinyo lwe-keratometry lunikeza isilinganiso esilinganiselwe se-cornea yakho, kunokuba lulinganise ngqo. Isizathu salokhu ukuthi lolu vivinyo lulinganisa i-cornea yakho, uma sicabanga ukuthi iyindilinga ngokuphelele, iyindilinga efanayo yonke indawo. Kodwa empeleni, amehlo awo wonke umuntu anezinguquko ezincane zemvelo. Ngakho-ke, i-cornea ayifani ncamashi nendilinga.

Kodwa lokho akusho ukuthi lokhu kuhlolwa akusizi ngalutho. Cabanga ngembulunga enemephu yomhlaba. Siyazi ukuthi ubuso boMhlaba bunezintaba, izilwandle, kanye nezinhlobo ezahlukene zomhlaba, ngakho-ke abushelelezi, futhi abuyindilinga ncamashi. Kodwa imbulunga iyithuluzi elihle lokusisiza siqonde ukuthi sikuphi. I-Keratometry iyafana. Nakuba ingeyona indlela eqondile yokulinganisa i-cornea, iwusizo kakhulu ekutholeni ngokushesha nangokunembile i-astigmatism yabantu abaningi.

Abanye ochwepheshe bamehlo manje basebenzisa i-corneal mapping (eyaziwa nangokuthi i-corneal topography kanye ne-corneal tomography) esikhundleni se-keratometry. Lokhu sekuthuthuke kakhulu futhi kunikeza izilinganiso ezinembile. Manje sekuthandwa njengendlela yokuxilonga i-astigmatism. Udokotela wakho angase futhi enze ukuhlolwa kwe-cornea mapping ukuqinisekisa imiphumela yokuhlolwa kwe-keratometry.

Kuyini lokhu kufundwa kuka-K? Ingabe kukhona inani elijwayelekile?

Imiphumela yokuhlolwa kwe-keratometry ibizwa ngokuthi ukufundwa kwe-K . Odokotela bamehlo balinganisa lokhu ngamayunithi abizwa ngokuthi ama-diopters .

Ngokuvamile, i-cornea enempilo iphinda ukukhanya ngenani elingama-diopters angu-43. Uma i-cornea ine-curve eqinile (ama-cornea aqinile), leli nani liyakhuphuka. Uma i-curve incane (ama-cornea athambile), leli nani liyancipha.

• Uma i-cornea yakho iyindilinga ngokuphelele, inenani elifanayo le-K phezu kobuso bayo bonke.
• Kodwa uma une-astigmatism, i-cornea yakho izobonisa amanani amabili e-K . Elinye inani engxenyeni egobile kakhulu, kanti elinye inani engxenyeni egobile okungenani, eyisicaba ye-cornea. Ukuhlolwa kwe-keratometry kukhombisa lo mehluko nokuthi ukugoba kuphakeme kakhulu futhi kuphansi kakhulu.

Lokhu kufundwa kwe-K kubaluleke kakhulu kudokotela ukuze aqophe ukugoba kwe-cornea yakho. Lokhu kulinganiswa kusiza udokotela ukuthola ukuthi yini ebangela ushintsho ekuboneni kwakho. Futhi, uma udinga ukuhlinzwa kwe-cataract, lokhu kufundwa kwe-K kusetshenziselwa ukukhetha ilensi yangaphakathi kweso.

Le miphumela nezinombolo kungaba nzima ngawe ukuziqonda. Kodwa ungakhathazeki. Udokotela wakho wamehlo noma udokotela angakusiza ukuthi uqonde umuthi wakho wamehlo. Bangakusiza futhi ukuthi ukhethe izibuko ezinhle kakhulu, amalensi okuxhumana, noma enye indlela yokulungisa umbono.

Kufanele simbone nini udokotela wamehlo?

Udokotela wakho wamehlo uzokutshela ukuthi kufanele uhlolwe amehlo kangaki njalo.

Njengoba sikhula, amehlo ethu ashintsha isimo ngokwemvelo, ngakho-ke i-astigmatism ingashintsha. Kodwa-ke, izinguquko ezinkulu, ezisheshayo ku-astigmatism zingaba uphawu lwesinye isimo esidinga ukwelashwa ngokushesha, njenge-keratoconus. Ngakho-ke, uma ubona noma yiziphi izinguquko emehlweni akho noma ekuboneni - ikakhulukazi uma umbono wakho ubonakala ungaphansi kokuvamile noma ungacacile - qiniseka ukuthi ubona uchwepheshe wamehlo ngokushesha.

Okokugcina, izinto okufanele uzikhumbule

I-Keratometry iwukuhlolwa okuvamile okusetshenziswa ochwepheshe bamehlo ukuthola i-astigmatism. Nakuba igama lingase lizwakale liyinkimbinkimbi, empeleni ukuhlolwa kulula kakhulu. Okudingeka ukwenze nje ukubheka idivayisi ekhethekile bese utshela udokotela wakho ukuthi izimpawu ezikuyo zihambisana nini. Uzosebenzisa lezo zilinganiso ukukala ukugoba kwe-cornea yakho.

Khumbula, lokhu akusikho ukuhlolwa kokupasa noma ukuhluleka. Kungakhathaliseki ukuthi i-astigmatism yakho inzima kangakanani, kunezindlela zokuyilungisa. Udokotela wakho wamehlo uzoncoma izindlela ezingcono kakhulu zokuhlanza umbono wakho.

Ngakho-ke, ungesabi uma ucelwa ukuthi wenze i-keratometry lapho uyohlolwa amehlo. Kubaluleke kakhulu empilweni yamehlo akho.

I- Keratometry, i-Astigmatism, i-Cornea, Ukukhubazeka Kokubona, Ukuhlolwa Kwamehlo, Ukufunda K, Impilo Yamehlo