Isici umbono. Ikhambi sesimweni

Isici umbono - Iyini? Impendulo yalo mbuzo, uzofunda kusukela zihloko zakhuluma. Ngaphezu kwalokho, uzothola ulwazi mayelana nokuthi, nalokho izinkinga iso abantu uhlangabezana kaningi kakhulu, futhi indlela ungakwazi ukuqeda kubo.

ulwazi olujwayelekile

Zokwelapha, uvame ukubizwa ngokuthi isici yephutha of kwalungiswa izinkunga zokubona. Okunjalo anomalies - izinkinga iso ezivamile. Ingqikithi yalo leli qembu izifo Kuyaphawuleka ukuthi uhlelo optical iso ayikwazi ukugxila imisebe yokukhanya kuyi-retina, lapho ukukhanya kuyinto ezishukumisa besibhalisi. Uphawu oyinhloko kanye yalokhu isimo sokugembula kuyinto awaboni kahle.

Vision ukwephuka kuthi oyiyo

Lokhu kuphambuka kungenzeka kube uhlamvu ezahlukene. eziningana ukukhubazeka ezivamile namuhla ivelele, okuyilezi:

• astigmatism;
• ukubona eduze noma myopia kangaka okuthiwa;
• ezikude noma hyperopia;
• ubumpumputhe umbala noma umbala ubumpumputhe;
• agnosia umbala.

Ukuze siqonde isizathu esenza kukhona ikakhulukazi umbono nephutha kumele ucabangele izici ngeziphambeko okwethulwa kabanzi.

astigmatism

Isizathu sokuthuthukisa isimo sokugembula ezinjalo ngokungalungile ezimise cornea umzimba optic. Kufanele kuphawulwe ukuthi ukuthuthukiswa astigmatism oluthinta ngqo iso lens ukufuduka isihlobo ukuba eksisi of kwalungiswa izinkunga zokubona. Bobabili okukhulunywa izizathu kuhilelani umehluko amabanga ukuthi kubalulekile ukugxila "izithombe".

isici ezinjalo ngombono kwelinye iso ingahlanganisa imithelela hyperopia, myopia nombono evamile.

Myopia, noma okuthiwa myopia

Ukubona eduze singenzeka ngenxa yezizathu eziningana. Eyokuqala ukwelulwa iso, ebe egcina Inkomba lesifanele. Njengoba isizathu sesibili, linamandla kakhulu kwalungiswa izinkunga zokubona optical okuyinto diopters okukhulu kuka-60, kuyilapho ubude umzimba optic ku uhla evamile. Bobabili ngeziphambeko ethulwa zibulale reception yesithombe evamile. Ngamanye amazwi, isithombe akakwazi ukugxila retina, futhi uhlala ngaphakathi inhlamvu yeso. Ngakho, i-retina esibone isithombe okugxilile noma iyiphi izinto ibangana kude ndoda.

Ukuze kulungiswe le nkinga umbono, iziguli kaningi linqume izibuko ezikhethekile ezisiza ukwakha isithombe esinembile. Kulokhu, umuntu kubhekwe izinto e ibanga ngaphandle zingaphazamisi. Ukuze isiguli myopic zibonakala ngokucacile ngaphezulu, usebenzisa lokususa lens okuyinto ukuletha izinto ezikude.

Ezikude, noma hyperopia

isici Enje eba ngenxa ababuthakathaka ngokweqile kwalungiswa izinkunga zokubona optical kwezitho ezibukwayo kuyilapho kulondolozwa obuphelele evamile inhlamvu yeso. Kufanele kuqashelwe ukuthi isizathu hyperopia kanye kokunciphisa eba yimbangela inhlamvu yeso ukulondolozwa amandla yezokubona.

Ngenxa iso hyperopic akakwazi ukudala ayiphoyinti kuyi-retina, imisipha ukungezwani kwandisa kakhulu. Lesi senzakalo kancane kancane ekushintsheni ugobile-lens, yona-ke kuholela lithathelwe isitho ezibukwayo ngaphansi zinjani izimo. Nokho, lokhu akwanele focus evamile yesithombe.

Uma sicabanga izinto eduze ijwabu, imisipha yomzimba esishubile ngisho nangokwengeziwe. Ngamanye amazwi, lo eduze into, kulapho kuvela isithombe kuyi-retina.

Yiziphi izindlela ukuqeda zamehlo, noma kunalokho, isikhathi eside-okwesa-? Ukuze kulungiswe ukuphambuka ezinjalo plus ukusetshenziswa izibuko abanamalensi. Asiza ekwakheni isithombe esihle ngokwanele.

Njengoba wazi, lapho kuzalwa umntwana, amehlo akhe kancane onomfutho nendawo. Yingakho zonke izingane ezincane ezinye ezikude kuphela. Nokho, kule nqubo ukuthuthukiswa umbono wabo kancane kancane ukubuyela esimweni esivamile.

Uma ngezinga elithile ezikude e abantu incane, akude naseduze umbono kungenzeka evamile. Kodwa ngesikhathi esifanayo abantu ngeke esekhala zekhanda ezinamandla futhi iso ukukhathala. Uma ngezinga isilinganiso ezikude, kubonakala awaboni kahle eduze.

Color ubumpumputhe, noma umbala ubumpumputhe

isici Enje kuyinto yesifo azalwa naso, okuyinto eyenzeka kaningi amadoda. Ingqikithi yale ukuphambuka ukuthi iziguli ezine-siyabhubha lesifanele kombala, adjustable photoreceptor amaseli (Izigaxa) e-retina yeso. Uma ezinye izinhlobo Izigaxa kubantu akwanele, khona-ke likhona umbala ubumpumputhe.

umbala agnosia

agnosia Color - uhlobo ukuphambuka ezifana agnosia ezibukwayo. Lapho ezifana nesifo nesineke ngemibala umbono abephule kungenzeka ukuhlukanisa imibala. Kukhona agnosia esisodwa futhi incwadi. Ukuxilongwa lezi kwezinso kudinga Ukuhlolisisa ngumuntu wezinzwa. Nquma uhlobo agnosia kungenzeka esebenzisa ukuhlolwa okukhethekile.

Ukwelashwa lokhu isifo yokwelapha esebenzayo sokusuka, okwaholela kokunqotshwa izigaba ubuchopho ngabanye. Isikhathi esining impela agnosia akwelapheki, ngokuletha ukungakhululeki amakhulukazi nesineke.

izici evamile migraine classical

Migraine nge aura ejwayelekile landile kwabesilisa. Kulokhu, iziguli zingase zibhekane ukuphazamiseka visual. Ngokuvamile avele njengoba shining amaphuzu mikhanyo molniepodobnyh, zigzags, amabhola, bese athuthukile ikhanda kuhle eqinile. Amandla kulezi zinkanyezi okuqhubekisela imizuzu embalwa noma imizuzwana. Kaningana, izithombe esikhundleni ekhanya ukulahlekelwa ezinye izingxenye emkhakheni ezibukwayo. Kufanele kuqashelwe ukuthi ukuphulwa ezinjalo ngezinye izikhathi ngokuhlanganiswa ukungabi namizwa ebusweni, kwesigamu umzimba kanye nolimi, kanye nobuthakathaka nasemilenzeni kanye nokwephula inkulumo evamile.