Nzira yekuona sei chiratidzo?

Chiratidzo ndicho chinonyanya kukosha chemashoko, nerubatsiro rwemunhu anogamuchira ruzivo rukuru pamusoro penyika yakapoteredza, asi, saizvozvo, ziso rine mutoro wakaremara, kunyanya munyika ye magetsi nemakombiyuta.

Nzira dzeziso rekuongorora

Munyika dzeCIS, nzira inowanzoonekwa yekuona maziso ndeye Golovin-Sivtsev tafura. Tafura yakadaro inosanganisira zvikamu zviviri, imwe yadzo ine tsamba inopera kusvika pasi, uye chindori chechipiri nemapapiro mune zvakasiyana. Zvose uye imwe chikamu chetafura ine mitsara 12, umo zvindori uye tsamba zvinoderera muhukuru kubva kumusoro kusvikira pasi. Mafura akadaro anowanikwa muhofisi yepi zvese oculist, uyewo kakawanda mune optics.

Chimiro chemazuva ose chinotaridzirwa, umo munhu anonyatsosiyanisa mutsetse wegumi kubva kure nemamita mashanu, kana, pamwe, wekutanga kubva kure nemamita makumi mashanu. Mahwendefa aya akaiswa mudijimenti, iyo imwe neimwe mutsara inotevera inoenderana nekuvandudzika mune zvakaratidzwa ne 0.1.

Nekuderera kwemaonero anooneka, inotarirwa nemutsara wefurafura iyo murwere anoona, kana, kana iri pasi pe1 (kwete kukwanisa kusiyanisa mutsara wekutanga wetafura kubva pamamita mashanu) uchishandisa chirevo cheSnellen:

VIS = d / D

Apo d iyo iri kure kubva kune iyo muongorori anokwanisa kusiyanisa mutsara wekutanga wetafura, D ndiyo nzvimbo iyo inowanikwa kune murwere ane maitiro anooneka akareba (50 m).

Zvakakodzera sei kutarisa chiratidzo?

1. Kuongorora zviratidzo zvinotevera pahutano hwehutano, kana maziso asingawedzereri. Kutora mishonga, zvirwere uye kuneta kukuru kunogona kuchinja chikonzero chekuedzwa.
2. Paunenge uchiedza kuongororwa kwemaonero, tafura inofanira kunge yakajeka.
3. Ziso rimwe nerimwe rinofanira kuongororwa zvakasiyana, kuvhara neruoko rwechipiri. Kuvhara ziso rechipiri hazvisi kudiwa, zvinogona kuchinja mhinduro.
4. Paunenge uchiita chiyero, iwe unofanirwa kutarisa mberi, usatsvaira musoro wako kana kuisa.

Kuongorora maziso kumba

Chokutanga pane zvose, zvakakosha kuziva kana maziso ako ari kunetseka zvakanyanya uye kana kune dambudziko rekuona kurasikirwa. Pindura iwe hongu kana kwete kumibvunzo inotevera:

1. Iwe unonzwa wakaneta nekuguma kwezuva here?
2. Iwe une kunzwa "sejecha" here kana kuti kupisa kunzwa mumaziso ako, kwete kukonzerwa nekukanganisa kwakaitika?
3. Maziso ari kunwisa here?
4. Iko tsvuku inowanikwa mumaziso here?
5. Unoona zvakaoma kutarisa meso ako here?
6. Pane manzwiro ekutsvaira uye maonero asina kunaka here?
7. Zvinoitika kuti chifananidzo kwenguva shoma chinotanga kuwedzera kaviri?
8. Iwe unotambura nekurwadziwa munzvimbo dzemazuva?

Kana wakapindura hongu, kune mibvunzo mitatu kana kupfuura, ipapo maziso akazara uye kukanganisa kwekuona kuora mwoyo kwakanyanya.

Kuti uongorore chiono pane kombiyuta, shandisa firimu yevordian uye uise mazita mashomanana makuru mumutemo usina kumira, Arial font size 22. Isai peji peji kusvika ku100%. Mukuonekwa kwakakwana, munhu anofanira kunyatsosiyanisa tsamba kubva kure nemamita mashanu. Kana izvi zvisingashande, unofanira kuuya pedyo, uye owedzera rutivi rwakazoguma ne 0.2. Nokuda kwemugumisiro wakarurama, kuti maonero acho akanga akarurama, uye kwete pamakona, iwe unogona kudhinda tafura iripo uye woiisa pamadziro. Uyewo chekutarisa maonero eimba, unogona kushandisa chero bhuku, rine tsamba ye2mm. Apo maonero anooneka emakiramu akaenzana, ndima yacho inofanira kujeka zvakajeka pamakiromita 33-35 kubva pameso.

Kuti uone binocularity yechiratidzo masentimita mashoma kubva mumhino, kuisa pasi penile, kana chimwe chinhu. Kana binocular chiono chiri chimiro, ipapo mabhii ose ari mumagwaro ari kure nemamita 30 achave akakurumbira, pasinei nekudzivirira.

Kana kuongorora pamusha kwakaratidza kuti kune kuora kwemaonero anooneka, unofanirwa kuona oculist kuti yakanyatsoongorora nekurapa.