Mubvunzo: Chii chinonzi corneal topography?
Pandinenge ndiine gore rinosangana lens test, chiremba wangu anokwereta mari yakawedzerwa yekodenal topography. Chii chinonzi corneal topography?
Mhinduro: Corneal topography ndiyo nzira inoshandiswa kutarisa uye kuongorora kuchinja kunogona kuitika pakuumbwa uye kutendeseka kwekona yeziso rako. A corneal topographer mapurogiramu akasiyana-siyana ezvindori zvakajeka, zvinonzi separcido disc, pamusoro penzvimbo ye cornea, iyo inoratidzwa zvakare kumashure.
Mushure mekuongorora mabheji akaonesa echiedza, kombiyuta inogadzira mapepa ekunyora kwekornea. Mifananidzo yakabudiswa nemuongorori wenguva ino inogona kubatsira chiremba weziso rako paanoongorora hutano hwemaziso ako.
Chii chinonzi cornea?
Mucheka wakajeka, wakafanana nemadziro akavhara iris uye mudzidzi. Iyo cornea inopa 2/3 yesimba rinoshandiswa kumeso. Iyo cornea inhengo inoshamisa inoshandiswa nemasero anozivikanwa. Iko hakuna mishonga yeropa mumakora kuti igoipira kudya. Ironea inogamuchira zvakawanda zvekudya kwayo zvakananga kubva pamisodzi pamusoro pepamusoro uye kuburikidza nemhepo inonyanyisa (inobudisa mvura inozadza chipinda chemukati cheziso) kubva mukati meziso. Nemhaka yekuti cornea yakafanana ne-lens, inofanirwa kuva yakajeka uye mitsipa yeropa inogona kupindira nekutarisa.
Chii chinonzi corneal mapeji ekuratidzira?
Corneal topography inopa ruzivo rune ruzivo pamusoro peziso mune dzimwe nzvimbo:
- Keratometry - Pamberi pemashandisi ekunyora maitiro ekugadzirwa kwemaitiro akaumbwa, keratometer yakashandiswa kuyera nzvimbo duku mukati megoni cornea. Inopa chiremba zviyero zviviri pamusoro pokuderera kwekornea. A keratometer ndiyo teknolojia yakakura asi iwe uchange uchingowanikwa kamwe muhofisi yese yechiremba achiri nhasi. Zvisinei, chigadziro chemaodzora chakashandura runyararo rwekugadzirisa maitiro. Panzvimbo pokungofungidzira pfungwa mbiri, imwe nyanzvi yemapurisa inogona kuyera mazana uye kunyange zviuru zvemashoko ematare ekuvaka mapepa akajeka emarara ehuwandu hwemaziso pane chero nzvimbo iyo chiremba anofarira. nzvimbo munzvimbo dzakanyorwa uye dzakasvibira mubhuruu. Izvi hazvikoshi chete muhupenyu huripo asi huchaudza chiremba zvakanyanya kunyatsoenderana nemaantitigmatism aunazvo .
- Nzvimbo dzemahombekombe - Corneal topographers inogona kuratidzawo makomo ekukwirira. Kurema mamapu kunobatsira chiremba kuona nzvimbo dzisina kujairika pane cornea dzinowanzosiyana zvakasiyana nezvinoitika. Mamwe mapurogiramu anoratidza chifananidzo chema 3-dimension iyo chiremba anogona kutenderera kuti anzwisise zviri nani zvingave zvichiitika nekromnea.
- Taura newaini yakakodzera - Dhiyabhorosi weziso rako anoda kuti masero ako ekubatanidza akakodzera maziso ako uye zvichibvira, uye kuziva chimiro chaiyo che cornea yako inonyanya kukosha. Kubatana kwemaregi ayo akaoma zvakasimba angaita kuti mhepo isati yasvike, ichigadzira nzvimbo isina kunaka yemasero. Kune rumwe rutivi, kuisa lenzi iro rakasununguka rinogona kubvumira kufamba kwakanyanyisa kwema-lens muziso rako, zvichikonzera kusagadzikana uye zvichida kukuvadza kune epithelial cells.Kunyatsoziva lenses kunoda hukuru hwemabasa, iwe uye nachiremba wako . Iwe unofanirwa kushingaira mukutevera zvakakodzera kuchenesa maitiro uye kupfeka zvirongwa. Chiremba wako anofanira kunyatsocherechedza kuchinja kuduku mumaziso ako kuitira kuti urege kudzivirirwa zvakanyanya kuwirirana.
- Dry eye evaluation - Misodzi yako yakaoma zvikuru. Imwe yebasa rekupararira kwefirimu ndeyekubudisa nzvimbo yakajeka kubva pane chiedza chinoputira muziso. Pasina misodzi, pane zvakawanda zvipembenene zvinyoronyoro mukati memakona. Izvi zvinogadzira nzvimbo yakaoma kwazvo. Misodzi inozadza zvipfeko zvose kuti zvive zvakanyatsooneka. Kana iwe uine maziso akaoma, nzvimbo inenge isingasviki uye chiratidzo chako chichava chisina kumira. Izvozvo zvakafanana nekukanda mapiritsi ako mugirazi dzako. A corneal topographer achakwanisa kuratidza kuti yakaoma sei pamusoro uye kuti ziso rakaoma ringakanganisa sei maonero ako.
Kunobva:
Elliott, David B. Zvirongwa zveMitambo muChinyorwa Chekuona Kwemaziso, Pp 115-116. Elsevier Limited, 2003.