Peripheral chiratidzo

Nyaya nhasi yedu uchanamatira chiratidzo uye basa rake. Tinoona sei kutarisana midziyo kuti peripheral chiratidzo, uye kuona angled inowanikwa kune muviri womunhu.

Mumwe mashandiro anoita basa rinoonekwa midziyo chinhu peripheral chiratidzo. Anokonzera nokuti peripheral zvikamu zviri the retina. The chikuru chokukomborerwa kwayo kunyatsoshanda - kwevanhu angled kuti maonero. Rinosanganisira kuti chikamu nzvimbo, iyo unosanganisira neziso romunhu ane wakaiswa anopenya Kuda kutamba nyaya. The chikuru basa peripheral chiono anonzi dzidziso iri muchadenga.

Ratidza munda maonero ane chaizvo ukoshi, anosarudza miganhu yacho the retina. Ziso ikasakendenga chena ruvara zvinotevera miganhu: outwards - 90º, zvichikwira kwekunze - 70º, zvichikwira mukati - 55º, mukati - 55º, pasi mukati - 50º, pasi - 65º, pasi outwards - 90º. "Kurasikirwa" wacho zvikamu anonzi mombe. In zvenyama nharaunda chomunda maonero ine vasiri scotoma - Yaunoti "bofu gwapa". Ndezvomuzvarirwo uye kuvapo angioskotom - Ribbon serin'i "fallout" mumunda maonero chokuita pamberi hombe retikalnyh midziyo, nokuvhara photoreceptor masero. Kuvapo kwavo emunhu chete zvishoma peripheral chiratidzo uye vaiona vasingambooni chakaipa nazvo.

Scotoma vari neMhedziso, wakakwana "kurasikirwa" pebindu, uye hama - anyatsoona kudzikira mune kuona basa iri kuongororwa penguva. Uyewo, marudzi awa maviri vari rakakamurwa akanaka uye kunaka scotoma. Positive anogona kuwanika vavo vava kuonekwa sezvo kwasviba makwapa ari kutarisana mumunda, iyo inoratidza kuvadza the retina. Negative scotoma chete zvigadzirwa asina kuona uye kuonekwa somugumisiro kukuvara anotenderera. Dzinowanzotanga kuzivikanwa muna ongororo. Pane scintillating scotoma. Kazhinji, chitarisiko chavo haateverani chero maitiro uye chose kwatangwa. Kana murwere namahwindo maziso vakarinda siyana kunzvenganzvenga mitsetse ndichisveerera kuti peripheral chiratidzo, richiwanika spasm pamusoro chepfungwa midziyo. Kumisa izvi uye kuvandudzika zvinhu, vanachiremba dzinorumbidza pakarepo kutanga kutora zvinodhaka antispasmodic.

Scotoma pamusoro nzvimbo nzvimbo zvinogona Classified sezvinotevera:

• peripheral;
• paracentral;
• nechepakati.

Pasi apa, ratinoparidza pakarongwa zvaakaratidzwa matambudziko inobatsira kuti kuparara peripheral kuona maonero.

Kuderedza munda zvaakaratidzwa kumativi ose kusvika 5 - 10 madhigirii mugumisiro kuparadzwa tsinga uye retinal dystrophy. Fani iyi inonzi concentric marwadzo ari kutarisana munda. Kazhinji, mumamiriro ezvinhu akadaro, munhu achiri anoona uye anogona kuverenga, asi kukwanisa dzokuMabvazuva pachake muchadenga nokupera muchiratidzo zvachose uye yekudyidzana kuipa.

Pakadaro, kana murwere chakarasikirwa zvakafanana, ichibata ongororo site, zvinokosha kutaura kuti nyanzvi kuti kwazvo kuzviongorora. Zviratidzo zvakadaro kazhinji rinoratidza kuvapo murwere bundu, ropa uye zvimwe zvirwere zvakakomba. Mukutanga mumatanho anomera uye inflammations zvinogona akacherekedza kurasikirwa chete chikamu review, t. E. Akafirwa chikamu chimwe muzvina munda maonero. Mune zvokurwara iri the retina, zvakaratidzwa zvingaparadzwa munzvimbo dzakasiyana. Somuenzaniso, yemaziso nhete munda nemaonero ari nasal divi.

Ongorora mutambi muganhu kusango maonero, unyanzvi Artisan anogona kuona localization kuti maronda dzakasiyana ziso makwara, uyewo ukuru chinopedza maronda pachikuva yemaziso, uye dzimwe parameters.