Iso liyingxenye yombono lapho sibona khona umhlaba osizungezile. Ngaphambili kweso yilona iris, elilawula inani lokukhanya elifaka iso. Ku-iris kukhona imisipha, ekukhanyeni okukhazimulayo abakwenzayo, ukunciphisa ukuvulwa komfundi futhi ngaleyo ndlela banciphise ukukhanya okukhanyayo ukungenelela iso. Ngobusuku, imisipha ikhululekile, ukuvulwa komfundi kuyanda ngokwengeziwe futhi kuvumela ukukhanya okukhulu. Iqoqa ukukhanya efaka iso futhi iqondise ku-retina - i-lens. Kungenxa ngosizo lensiza ukuthi umfudlana okhanyayo ugxile kwi-retina, ukudala isithombe kuso. Ukuze ubuke izinto ezisendaweni ehlukile esweni, imisipha yamehlo yenza i-lens, ishintshe ukuvunduka kwayo, ukuze isithombe esicacile sibonakale ku-retina iso.
Uma umuntu engaboni ngokucacile izinto ezikude, khona-ke lesi yisifo se-iso - i-myopia. Futhi uma ngokuphambene nalokho, ubona kahle izinto ezikude kakhulu - ukubhekwa phambili. Kunesifo esisodwa esinye - njenge-astigmatism. Njengoba i-astigmatism, irises kwesobunxele nesobunene iso liphikisiwe ngezindlela ezahlukene, ngakho-ke imisebe ephuma endaweni eyodwa ayikwazi ukugxila. Isici esiyinhloko embonweni ovamile wezinto akuyona isimo se-lens, kodwa umzamo wokumisa umzimba usetshenziselwa ukuhlola into. Ngakho-ke, akufanele ucindezele amehlo akho ukuze ucabangele lokhu noma into. Abantu abanombono ojwayelekile abazami ukugxila amehlo abo endaweni ethile, uma isihloko singabonakali ngokucacile, khona-ke umbono ubheka ngokuzenzakalelayo into ebonakala ngokucacile. Noma yisiphi isimo sengqondo singabangela ukungezwani emisipha yamehlo. Ngenkinga yemisipha yamehlo, isimo se-eyeball sishintsha, futhi iso alinakho ukunikezwa kwegazi. Singasho ukuthi impilo yamehlo ixhomeke ekunikezeni igazi okwanele, futhi ukunikezwa kwegazi kuxhomeke esimweni sengqondo. Uma umuntu esesimweni esithulile, ekhululekile, ubuchopho bakhe buhlinzeka ngegazi elanele, izinzwa zomzimba nama-visual facilities ngokuvamile zidla igazi. Futhi uma isimo sengqondo somuntu sikhululeka, isimo sesabekile, esithakazelisayo, khona-ke ukuhamba kwegazi kuphazamiseka. Ama-optical nerve kanye nezikhungo ezibukwayo bayeka ukuthola igazi ngevolumu edingekayo. Okokuthi, umuntu ngokwayo uyakwazi ukwandisa ukujikeleza kwegazi, ngoba kungabangela imicabango egcwele ukucindezeleka.
Isiphetho - noma yisiphi isimo esicindezelayo umuntu abhekana nayo, siholela ekubonweni okuncane. Iso eliphilile endaweni ekhululekile, lapho uhlola izinto ezikude, njengoba uhlaziyekile, futhi uma ubheka izinto eduze - zide eduze kwe-axis. Ukucindezeleka kuvimbela iso ukushintsha ukuma kwalo. Ukusiza imisipha yamehlo, abantu bahlomile ngezibuko. Ngenxa yalokho, imisipha ye-ocular iyancipha nakakhulu. Ukulondoloza amakhono akho, kubalulekile ukuthi umzimba ube esimweni esisebenzayo.
Ukugcina umbono ovamile, udinga ukwenza ama-gymnastics ngamehlo. Ukuzivocavoca kufanele kwenziwe ngendlela ehlelekile. Ngokuvamile phumula imisipha yamehlo. Ukuze wenze lokhu, faka amajwabu amehlo emaminithi ambalwa, phumula, khumbula into enhle, i-seascape enhle noma indawo yezwe. Ukudla okunempilo kubaluleke kakhulu embonweni ovamile. Ukudla kufanele kube namavithamini acebile, ikakhulukazi amavithamini A no-D. Vitamin A itholakala ebhotela, esibindi nasenhlathini yamafutha, izaqathe, isipinashi, ama-persimmons, njll. Ukuntuleka kwamavithamini A kuholela embonweni ompofu kusihlwa (ubumpumputhe ubusuku). I-Vitamin D itholakala ku-isikhuphaji seqanda, ngo-herring, ibhotela. Kubalulekile ukuhamba kaningi ngaphandle, ikakhulukazi emini kusukela emahoreni angu-10 ukuya kwangu-16, ngoba ngalesi sikhathi ukuthi ubukhulu bemisebe ye-ultraviolet edingekayo ukuze kubonakale umbono omuhle. Ukuze uthuthukise amehlo, kunconywa ukuba uphuze ijusijolo, futhi udle amajikijolo entaba ash. Awukwazi ukubheka into eyodwa noma ezintweni ezincane isikhathi eside. Futhi uma kunesidingo salokhu, udinga ukuphumula ngezikhathi ezithile amehlo akho. Ikhambi lomuntu lokuphazanyiswa kombono onhlabathi oyisabekayo yindlela elandelayo: ubilise iqanda lezinkukhu, uthathe kanye ne-hemisphere yeprotheyini kumele isetshenziswe kweso eligula ngakho. Amaprotheni ayithinta kuphela isikhumba nxazonke, futhi iso ngokwalo alithinti.
Zama ukungabi nezimo ezicindezelayo, uthathe iqiniso njengoba kunjalo. Jabulela ukuphila nakho konke okubonakalayo. Qinisekisa ukukhulula ukucindezeleka kwengqondo, nokuhlukunyezwa okwakubonakala phakathi nosuku, ukusebenzisa izivivinyo ukuze uphumule imisipha yamehlo. Uma yonke imithetho ilandelwa, umbono awukwazi ukugcinwa kuphela, kodwa ngisho nokuthuthukiswa. Manje uyazi ukuthi ingabe umbono ungadala kakhulu emithanjeni. Yiba nesisoteric futhi uvikele impilo yakho ezinkingeni ezingenasidingo zesifo.