Ziso rinoumbwa nechikamu chinoonekwa uye chikamu chisingaoneki chakavigwa muziso reziso. Kumberi tinowana chikamu chakajeka chinonzi cornea, chine chikamu chichena chakatenderedza, conjunctiva. Kuseri kune iris inova diaphragm yeziso kozoti lenzi uye kumashure kune retina inova rudzi rwescreen muziso. Ndiyo retina inoendesa tsinga dzechifananidzo kuuropi kuburikidza netsinga yemaziso. Iyo lenzi inoumbwa neyekunze biconvex capsule uye yemukati matrix, zvese zviri pachena.

Iyo lens i lens yeziso, inobvumira chiedza kuti chitarise pane retina. Iine hunyanzvi hwekugara izvo zvinoita kuti igadzirise chiono zvinoenderana nenhambwe yechinhu chakatariswa uye kuchengetedza chiono chakajeka.

Cataracts inoonekwa kana mapuroteni ari mulenzi achinjwa uye matrix inova isina kujeka zvachose, ichidzivirira chiedza kubva kune retina. Iyo yakawanda nzvimbo dze lens dzakakanganiswa, iyo imbwa inorasikirwa nekukwanisa kwayo kuona. Kana cataract yafambira mberi imbwa inorasikirwa zvachose kuona kwayo.

Cataract haifaniri kuvhiringidzwa ne sclerosis ye lens. Iwe haufanirwe kunetseka nezve sclerosis yeziso reziso. Sezvakaita cataract, lenzi inopenya zvishoma nezvishoma. Asi kuchena kwelenzi uku hakutadzise chiedza kudarika uye imbwa ichiri kuona.

Cataract mumbwa kazhinji chirwere chinoenderana nezera.

Isu tinotaura nezve senile cataract: inonyanya kubata imbwa kupfuura makore manomwe. Inosvika mumaziso ose uye inofamba zvishoma nezvishoma.

Chimwe chezvikonzero zvinonyanya kukonzeresa chirwere chegomarara chakabatana nerudzi rwembwa: iyo inobva yagara nhaka, saka ine genetic mavambo. Nokudaro mamwe marudzi embwa anonyatso gadzirira kuonekwa kwecataract. Tinogona kutora muenzaniso weYorkshire kana Poodle. Rudzi rwegonyeti urwu ruchizivikanwa, tinogona kuedza kupindira nekukurumidza kana zvichiita sekuchengetedza kuona kwembwa.

Zvirwere zveretinal nezvimwe zvinokonzeresa kuzvimba kweziso zvinogona kuita kuti katarakiti ioneke mumbwa. Saka kubvongodzwa kwemboni yeziso kunotevera kuvhunduka kana kukuvadzwa zvinokonzeresawo kuti pave nekuonekwa kwegonyeti mumbwa.

Kana iyo lens ichichinja chinzvimbo uye kutenderera, tinotaura nezve dislocation yelens. Iyi dislocation ndiyo imwe etiology yecataracts. Uku kutsemuka kwelenzi kunogona kuitika nekuda kwekuzvimba kana kuvhunduka, mamwe marudzi akaita seShar-Pei anonyanya kuoneswa kubviswa kwelenzi.

Pakupedzisira, imbwa dzine chirwere cheshuga dzinogona kutadza kuona. Ichi chirwere cheshuga chinowanzokura nekukurumidza uye chinokanganisa maziso ose.

Kana ziso rembwa yako uye kunyanya lenzi yembwa yako ikaita chena vet yako ichaita ongororo yeziso yakakwana kuti uone kana pane zvikonzero zvinoita kuti imbwa ionekwe.

Ophthalmologic kuongorora kunosanganisira:

1. Kutanga, kucherechedza kubva kure neziso, tinotarisa kana kukuvadzwa kusina kukanganisa maziso kana ziso reziso, kana ziso risina kuenzana rakakura (buphthalmos) kana kubuda (exophthalmos).
2. Zvino kana ziso rakatsvuka uye kune conjunctivitis mumbwa, corneal test inoitwa.
3. Kazhinji, kana pane ronda re lens uye kunyanya kana pane kubviswa kwe lens, intraocular pressure (IOP) inopimwa kuitira kuti ibvise kufungira kwe glaucoma kunokonzerwa nekusagadzikana kwe lens. Glaucoma kuwedzera kusingawanzo muIOP uye kunoisa njodzi yekurasikirwa kweziso. Anofanira kurapwa nokukurumidza kana aripo.
4. Nechinangwa chekugona kuvhiyiwa lenzi kuti idzorere kuona kumbwa, chiremba wemhuka anoita (kana kuti ane chiremba wemhuka nyanzvi yeophthalmology) kuongororwa kwetsinga dzeretina. Muchokwadi, kana retina isingachashandi kana kusaendesa mifananidzo nenzira kwayo, kuvhiyiwa kuchave kusingabatsiri uye hakuzodzorere kuona imbwa. Iyi bvunzo inodaidzwa kuti electroretinography.

Kurapa chete kwecanine cataract ndiko kuvhiyiwa. Inoitwa nachiremba wemhuka ophthalmic microsurgeon uye inoda midziyo chaiyo, senge ophthalmic microscope, maturusi madiki, uye midziyo yekukwevera uye kushuvira iyo lens matrix. Nechikonzero ichi kuvhiya uku kunodhura zvakanyanya. Chiremba wemhuka achavhura pakati pe cornea ne conjunctiva kuti azivise maturusi ake, obva abvisa matrix yave opaque kubva mukati me lens capsule oitsiva ne lens inoonekera. Pakupedzisira anoita microscopic suture yekuvhura kwaakanga aita pakutanga. Panguva yekuvhiyiwa kwese, anofanirwa kuisa hydrate cornea kudzivirira kuoma uye jekiseni zvigadzirwa kutsiva zvinwiwa zvinogara zviripo muziso uye izvo zvinobuda nepaburi rekuvhiya.

Mushure mekuvhiyiwa iwe uchada kuisa madonhwe akawanda eziso paziso rembwa yako uye ophthalmologist inotarisa maziso nguva dzose.