U-Arcus Senilis

-Delile

• Izimbangela
• Izimpawu
• Izinketho zokwelashwa
• I-Arcus senilis ne-cholesterol ephezulu
• Izinkinga nezingozi
• Umbono

Ukubuka konke

I-Arcus senilis isiyingi esiyindilinga sediphozi empunga, emhlophe noma ephuzi emaphethelweni angaphandle we-cornea yakho, ungqimba olungaphandle olucacile ngaphambili kweso lakho. Yenziwe ngamadiphozi amafutha kanye ne-cholesterol.

Kubantu abadala asebekhulile, i-arcus senilis ijwayelekile futhi imvamisa ibangelwa ukuguga. Kubantu abasebasha, kungahle kuhlotshaniswe namazinga aphezulu we-cholesterol.

I-Arcus senilis kwesinye isikhathi ibizwa nge-corneal arcus.

Izimbangela

I-Arcus senilis ibangelwa ukufakwa kwamafutha (lipids) engxenyeni engaphandle ye-cornea yakho. I-cholesterol ne-triglycerides yizinhlobo ezimbili zamafutha egazini lakho. Amanye ama-lipids egazini lakho avela ekudleni okudlayo, njengenyama nemikhiqizo yobisi. Isibindi sakho sikhiqiza okusele.

Ngoba unendandatho ezungeze i-cornea yakho, akusho ukuthi une-cholesterol ephezulu. U-Arcus senilis uvame kakhulu njengoba abantu bekhula. Lokhu kungenzeka ngoba imithambo yegazi emehlweni akho ivuleka ngokwengeziwe ngobudala futhi ivumela i-cholesterol eyengeziwe namanye amafutha ukuthi avuze ku-cornea.

Cishe amaphesenti angama-60 abantu abaneminyaka engama-50 kuya kwengama-60 banalesi simo. Ngemuva kweminyaka yobudala engama-80, cishe amaphesenti ayi-100 wabantu azokwakha le arc ezungeze i-cornea yabo.

I-Arcus senilis ivame kakhulu kwabesilisa kunabesifazane. Abantu base-Afrika baseMelika maningi amathuba okuthola lesi simo kunabantu bezinye izinhlanga.

Kubantu abangaphansi kweminyaka engama-40, i-arcus senilis ivame ukubangelwa isimo esizuzwe njengefa esiphakamisa amazinga e-cholesterol ne-triglyceride.

Ezimweni ezingavamile, izingane zizalwa zine-arcus senilis. Kubantu abasha, lesi simo kwesinye isikhathi sibizwa ngokuthi i-arcus juvenilis.

I-Arcus senilis nayo ingavela kubantu abane-Schnyder central crystalline dystrophy. Lesi simo esingajwayelekile, esizuzwe njengefa senza amakristalu e-cholesterol abeke ku-cornea.

Izimpawu

Uma une-arcus senilis, uzobona isigungu esiyisiyingi esimhlophe noma esimpunga zombili ezindaweni eziphezulu nezingezansi ze-cornea yakho. Isiyingi-isiyingi sizoba nomngcele ongaphandle obukhali kanye nomngcele ongaphakathi obuthuntu. Imigqa ekugcineni ingagcwalisa ukwakha indilinga ephelele ezungeze iris yakho, okuyingxenye enemibala yeso lakho.

Cishe ngeke ube nezinye izimpawu. Umbuthano akufanele uthinte umbono wakho.

Izinketho zokwelashwa

Awudingi ukwelapha lesi simo. Kodwa-ke, udokotela wakho angancoma ukuthi uhlolwe amazinga akho.

Uma ungaphansi kweminyaka engama-40 futhi une-arcus senilis, kufanele uthole ukuhlolwa kwegazi ukuze uhlole amazinga akho e-cholesterol nama-lipid. Ungaba sengozini enkulu ye-cholesterol ephezulu nesifo semithambo yegazi.

Udokotela wakho angelapha i-cholesterol ephezulu ngezindlela ezimbalwa. Ungaqala ngokuzama izinguquko zendlela yokuphila, njengokuvivinya umzimba kakhulu nokudla ukudla okunamafutha agcwele, amafutha we-trans, ne-cholesterol.

Uma ukudla nokuzivocavoca kunganele, imishanguzo eminingi ingasiza ukwehlisa amazinga akho e-lipid:

• Izidakamizwa ze-Statin zivimba into esetshenziswa yisibindi sakho ukwenza i-cholesterol. Le mithi ifaka i-atorvastatin (Lipitor), i-fluvastatin (i-Lescol), i-lovastatin (i-Altoprev), i-pravastatin (i-Pravachol), ne-rosuvastatin (i-Crestor).
• Izinhlayiya ezibopha i-acid acid ziphoqa isibindi sakho ukuthi sisebenzise i-cholesterol eningi ukukhiqiza izinto zokugaya ukudla ezibizwa nge-bile acid. Lokhu kushiya i-cholesterol encane egazini lakho. Le mithi ihlanganisa i-cholestyramine (Prevalite), i-colesevelam (i-Welchol), ne-colestipol (i-Colestid).
• I-cholesterol absorption inhibitors efana ne-ezetimibe (Zetia) inciphisa ukumuncwa komzimba wakho kwe-cholesterol.

Izidakamizwa zingasetshenziselwa ukwehlisa amazinga we-triglyceride:

• Ama-fibrate anciphisa ukukhiqizwa kwama-lipids esibindi sakho futhi andise ukususwa kwe-triglycerides egazini lakho. Kubandakanya i-fenofibrate (i-Fenoglide, i-TriCor) ne-gemfibrozil (i-Lopid).
• I-Niacin inciphisa ukukhiqizwa kwama-lipids ngesibindi sakho.

I-Arcus senilis ne-cholesterol ephezulu

Ubudlelwano obuphakathi kwe-arcus senilis namazinga angavamile we-cholesterol kubantu abadala asebekhulile beyimpikiswano. bathi lesi simo sixhumene nezinkinga ze-cholesterol nesifo senhliziyo kubantu abadala. Ukuthi i-arcus senilis kuwuphawu olujwayelekile lokuguga, futhi akuyona uphawu lwezingozi zenhliziyo.

Lapho i-arcus senilis iqala ngaphambi kweminyaka yobudala engama-45, imvamisa kungenxa yesimo esibizwa nge-family hyperlipidemia. Leli fomu lofuzo lidluliselwa emindenini. Abantu abanalesi simo banamazinga aphezulu ngokungajwayelekile we-cholesterol noma i-triglycerides egazini labo. Basengozini enkulu yesifo senhliziyo.

Izinkinga nezingozi

I-Arcus senilis uqobo ayizibangeli izinkinga, kepha i-cholesterol ephezulu kakhulu eyibangela kwabanye abantu ingakhuphula ubungozi benhliziyo. Uma uthuthukisa lesi simo ngaphambi kweminyaka engama-40, ungaba sengozini enkulu yesifo semithambo yenhliziyo noma isifo senhliziyo.

Umbono

I-Arcus senilis akufanele ithinte umbono wakho. Kodwa-ke, uma unayo - ikakhulukazi uma utholakala ngaphambi kweminyaka yobudala engama-40 - ungaba sengozini enkulu yesifo semithambo yenhliziyo. Ukwehlisa izinga lakho le-cholesterol ngokudla, ukuzivocavoca, kanye nemithi kunganciphisa izingozi zesifo senhliziyo yakho.