Ngaba uyazi ngokwenene ngolu vavanyo lwamehlo lukhethekileyo (uVavanyo lwePachymetry)? Masithethe!

Ngaba wakha waya kwingcali yamehlo waza weva into efana nale, "Sifuna ukujonga ubukhulu be-cornea yakho"? Usenokuba wacinga ukuba loo nto ingaqhelekanga. Yintoni le ndlela yokulinganisa ubukhulu be-cornea? Yiloo nto siyibiza ngokuba luvavanyo olwenzelwa yona, "Uvavanyo lwePachymetry" okanye "Uvavanyo lweCorneal Pachymetry." Ngamafutshane, ilinganisa ubukhulu be-"Cornea" yakho, umaleko ocacileyo ophambi kweliso lakho.

Yintoni uvavanyo lwePachymetry? Kutheni lubalulekile?

Kulungile, masiqale sijonge ukuba yintoni le `(Cornea)`. Uneliso, kwaye line -membrane ecacileyo, eqinileyo kancinci ngaphambili, njengeglasi. Njengeglasi yewotshi. Oku kusinceda sibone izinto ngokucacileyo, oko kukuthi, kusinceda sigxile ekukhanyeni ngokusiqondisa esweni. Ikwasebenza njengekhaka elibalulekileyo elikhusela iliso kwizinto ezinje ngothuli kunye neentsholongwane.

Ngoko ke, olu vavanyo lwe-`(Pachymetry)` lulinganisa ngqo ukuba i-`(Cornea)` ityebile kangakanani. Olu luvavanyo olubaluleke kakhulu, kuba ngokuxhomekeke kubukhulu be-`(Cornea)`, lunceda ekuqinisekiseni ukuba unesifo esithile samehlo okanye akunjalo, kwaye kukwabone nokuba ufanelekile na kunyango oluthile.

Enye into, kukho unxibelelwano oluncinci phakathi kolu vavanyo lwe-`(Pachymetry)` kunye nolunye uvavanyo olubizwa ngokuba yi-`(Corneal Topography)`. `(Corneal Topography)` idala imephu yemibala ye-`(Cornea)` yakho. Ingabonelela ngolwazi oluninzi malunga nokuma kunye nomphezulu we-`(Cornea)`.

Olu vavanyo lwe-pachymetry lwenziwa nini?

Kukho iimeko ezininzi apho ugqirha wakho wamehlo anokuthi agqibe ekubeni enze olu vavanyo lwe-"Pachymetry". Makhe sijonge ukuba zeziphi ezi zinto:

• I-Glaucoma: Esi sisifo esinokonakalisa i-optic nerve kwaye siphazamise umbono ngenxa yokunyuka koxinzelelo lwangaphakathi kweso (IOP). Ngoko ke, ukuba ukrokrela ukuba une-glaucoma, okanye unyangwa ngayo, kubaluleke kakhulu ukulinganisa ubukhulu be-cornea yakho. Oku kungenxa yokuba ubukhulu be-cornea yakho bunokuchaphazela iziphumo zovavanyo lwe-tonometry, olulinganisa uxinzelelo lwamehlo.
• Utyando lweempazamo zokuhombisa: Ukuba uceba ukwenza utyando olufana neLASIK ngenxa yokubona kufutshane okanye ukubona kude okufuna iiglasi, kuya kufuneka wenze uvavanyo lwePachymetry. Oku kukuqinisekisa ukuba i-cornea yakho ityebile ngokwaneleyo ukwenza utyando.
• Izifo zeCorneal: Kukho ezinye izifo ezichaphazela i-cornea, ezifana ne-corneal hydrops (imeko apho i-cornea iba ngamanzi), i-keratoconus (imeko apho i-cornea iphuma phambili), kunye ne-Fuchs' dystrophy (imeko echaphazela umaleko wangaphakathi we-cornea). Olu vavanyo lunokunceda ekuchongeni ezi zifo kunye nokucwangcisa unyango.
• Ukulimala kwamehlo:Xa kukho into eyenzekayo elisweni, ikwasetyenziselwa ukujonga ukuba i-cornea yonakele okanye ubungqingqwa bayo buchaphazelekile na.

Ngamafutshane, idatha malunga nobukhulu be-cornea efunyenwe kolu vavanyo lwePachymetry iluncedo kakhulu ekuqondeni ngokuchanekileyo iziphumo zovavanyo lweTonometry, olulinganisa uxinzelelo elisweni lakho.

Lwenziwa njani olu vavanyo lwe-pachymetry? Ingaba yinto enkulu?

Akunyanzelekanga ukuba ulungiselele okuninzi kolu vavanyo. Ngokwesiqhelo lunokugqitywa ngemizuzu embalwa. Kukho iindlela ezimbini eziphambili zokwenza oku:

1. Indlela ye-Optical Pachymetry

Okwenzekayo koku kukuba wenziwa ukuba uhlale esitulweni phambi komatshini. Intloko yakho nesilevu kufuneka zibekwe kwindawo ethile kumatshini. Emva koko umatshini uthatha imifanekiso yeliso lakho, uhlalutye loo mifanekiso aze alinganise ubukhulu be-`(Cornea)`. Kule ndlela, akukho nto ichukumisa iliso lakho. Ngamanye amaxesha iindlela zanamhlanje ezifana ne-`(Optical Coherence Tomography - OCT)` ziyasetyenziswa koku. Le yindlela ekhawulezayo kakhulu kwaye engenabuhlungu.

2. Indlela ye-Ultrasonic Pachymetry

Ngale ndlela, ugqirha uqala ngokufaka ithontsi elibangela ukuba amehlo akho angabi nazintloni. Oku kwenza amehlo akho angabi nazintloni okwethutyana, ukuze ungaziva ungakhululekanga. Emva koko, isixhobo esicocekileyo, esicociweyo nesifana nepeni esibizwa ngokuba yi-pachymeter sibekwa ngononophelo kumphezulu we-cornea yakho imizuzwana embalwa. Esi sixhobo sisebenzisa amaza e-ultrasound, angamaza esandi aphindaphindayo, ukulinganisa ubukhulu be-cornea yakho. Ngokwesiqhelo, ubukhulu bulinganiswa embindini we-cornea, kodwa ngamanye amaxesha nezinye iindawo zinokulinganiswa.

Kubalulekile: Ukuba uyazi ukuba uza kufumana amaconsi amehlo ngexesha lovavanyo lwakho lwamehlo, kungcono ukuba omnye umntu akuqhubele endaweni yokuba uqhube. Amanye amaconsi amehlo anokubangela ukuba umbala omnyama uvuleke, nto leyo enokubangela ukuba umbono ungacaci. Amaconsi okudambisa amehlo ngamanye amaxesha anokuba nefuthe elincinci ekuboneni.

Ngaba kukho naziphi na iingozi ngolu vavanyo?

Le isenokuba yinto oyicingayo nawe. Masibone.

• Indlela ye-Optical Pachymetry: Ekubeni iliso lingachukunyiswa kule ndlela, akukho mingcipheko yokuthetha ngayo. Ikhuselekile kakhulu.
• I-Ultrasonic Pachymetry: Le ndlela ayinazo iingozi ezinkulu, kodwa kukho izinto ezimbalwa ezincinci ezinokwenzeka ngokungaqhelekanga:
• Kukho ithuba elincinci lokosuleleka kwamehlo (yiyo loo nto kusetyenziswa izixhobo ezicocekileyo).
• Amehlo anokuba bomvu kancinci, avuvuke, okanye arhawuzelele (ukurhawuzelelwa liliso).
• Abanye abantu banokufumana impendulo encinci ye-allergy xa bebona amaconsi aphuma emehlweni.
• Xa iPachymeter icinezelwe elisweni, ngamanye amaxesha inokushiya umkrwelo omncinci, okwethutyana kumphezulu weCornea. Oku kuya kuphola kwiintsuku ezimbalwa.

Eyona nto ibalulekileyo kukuba ukuba ufumana naziphi na iingxaki zokubona, iintlungu zamehlo, okanye nantoni na engaqhelekanga emva kovavanyo lwamehlo, kufuneka wazise ugqirha wakho wamehlo ngoko nangoko.

Uzifumana njani iziphumo zovavanyo? Zikuxelela ntoni?

Eyona nto ingcono kukuba ufumana iziphumo ngokukhawuleza emva kovavanyo. Ugqirha wakho angathetha nawe ngazo apho.

Ngokwezifundo ezenziwe eMelika, ubukhulu obuqhelekileyo bomzimba womntu ophilileyo (i-Central Corneal Thickness - CCT) buphakathi kwama-540 nama-550 micrometers `(micrometers)` okanye ama-microns `(microns). Kodwa eli lixabiso eliqhelekileyo, khumbula. Ugqirha wakho akayi kuqwalasela eli xabiso kuphela, kodwa nezinye izinto ezininzi, ezifana neminyaka yakho, impilo yakho iyonke, kunye nokuba unezinye izifo zamehlo, xa egqiba kwelokuba athini kwezi ziphumo. Ngoko ke, nokuba ubukhulu bakho (i-Cornea)` bungaphandle kolu luhlu luqhelekileyo, amehlo akho anokuba sempilweni.

Ukuba iziphumo aziqhelekanga, ndingenza ntoni emva koko?

Khawucinge ukuba iziphumo zakho zovavanyo lwePachymetry azikho kuluhlu oluqhelekileyo. Kwenzeka ntoni emva koko? Ugqirha usebenzisa ezi ziphumo ukuze agqibe ngento aza kuyenza ngokulandelayo.

• KwiGlaucoma: Ukuba uneglaucoma, olu lwazi lobukhulu be-cornea lunokunceda ekuqinisekiseni indlela osabela ngayo kunyango lwakho kunye nokuba unyango lwakho kufuneka lutshintshwe na.
• Kutyando lwamehlo: Ukuba ulungiselela utyando olufana ne-`(LASIK)`, ubukhulu be-`(Cornea)` bubaluleke kakhulu. Kuba, ukuba i-`(Cornea)` ayityebanga ngokwaneleyo ukwenza utyando, imeko ebizwa ngokuba yi-`(Corneal ectasia)` inokwenzeka emva kotyando. Oko kuthetha ukuba i-`(Cornea)` iba buthathaka kwaye ivele phambili. Oko kunokuba nefuthe elikhulu ekuboneni. Ngoko ke, olu vavanyo lwenziwa ngaphambi kotyando ukunciphisa loo mngcipheko.

Kuthetha ukuthini ukuba i-cornea yakho ityebile?

I-cornea yabanye abantu inokuba nkulu kancinci kunesiqhelo. Kuthetha ukuthini oko?

• Ngokubanzi, kufunyenwe ukuba abantu abane-cornea etyebileyo banomngcipheko omncinci wokuba ne-glaucoma.
• Kwakhona, xa kulinganiswa uxinzelelo lwamehlo (IOP) lomntu one-cornea etyebileyo, kunokubonisa ixabiso eliphezulu kunoxinzelelo lokwenyani. Oko kukuthi, ngenxa yokuba i-cornea ityebile, i-pressure gauge inokunika umlinganiselo ongalunganga.

Ngoko ke, ngokwazi ubukhulu be-cornea yakho, ugqirha wakho unokwenza uvavanyo oluchanekileyo loxinzelelo lwamehlo akho aze akuxilonge ngokuchanekileyo.

Ngoko ke, zeziphi izinto esifanele sizikhumbule kweli bali?

Kulungile, ndiyathemba ukuba ngoku unembono elungileyo malunga ne-`(Pachymetry Test)`. Ngamafutshane, olu luvavanyo olungenabuhlungu, olukhawulezayo olubaluleke kakhulu kwimpilo yamehlo akho.

Khumbula:Ukuba ugqirha wakho wamehlo ucebisa uvavanyo lwePachymetry, oko kuthetha ukuba kufuneka bazi ubukhulu be-cornea yakho, bahlole ngokuchanekileyo uxinzelelo lwakho lwangaphakathi kweso (IOP), baze bafumanise ukuba ungumntu ofanelekileyo na utyando lwamehlo okanye bacebe unyango lweemeko ezifana ne-glaucoma. Eli linyathelo elinye elinokukunceda ukukhusela umbono wakho.

Ngoko ke, kubalulekile ukulandela icebiso lezonyango. Ukuba unemibuzo, ungoyiki ukubuza ugqirha wakho.

I- Pachymetry, uvavanyo lwamehlo, ukutyeba kwe-cornea, i-glaucoma, utyando lwe-LASIK, impilo yamehlo, uvavanyo lwamehlo