Yadda za a yi ka idanu gwada a gida. sauki tips

Ruhun sau - mutane kusan zagaye agogon zama daga allon. Karuwa na dogon directed kusan a daya batu, fara lura da cewa shi ya zama indistinct. Kuma a lokacin da karanta littafin akwai wani marmarin ya tura shi daga idanu.

Kamar yadda wani janar mulki, idan akwai matsaloli tare da hangen nesa da farko neman a kan Internet, yadda za a duba ya gani a cikin gida. Duba gani acuity - shi ne mai kima na your ikon rarrabe tsakanin mutum sassa. Idon Hangen Nesa rajistan shiga a wata babbar nesa, kuma dabam, bayan shekaru 40, duba kusa da hangen nesa. A misali hanya na dubawa wani ophthalmologist shiga wani dan kasa.

Yadda za a duba ya gani a cikin gida? Za ka iya amfani da dama gwaje-gwaje daga Internet, ko buga duk na saba gwajin na tebur da kuma rataye shi a kan bangon, 5 mita kowane ido dabam a kokarin karanta haruffa a cikin 12 jerin. Kayayyakin acuity 0.1 - babba jere da kuma 2.0 - ƙananan jere. Idan ba za ka iya karanta 10-th line, da hangen nesa shi ne al'ada. In ba haka ba, da zama dole gyara.

Akwai hanya daya to sun idanunku gwada a gida. Wajibi ne a faɗake tare da 3 mita kõma a cikin daban-daban kwatance da harafin "E" da Lines 0.5 cm Wani mutum wanda hangen nesa shi ne al'ada, daidai tantance su shugabanci :. Kasa, saman, hagu ko dama.

All na gida hanyoyi - game da dubawa na gani acuity, tun da irin wannan binciken mafi muhimmanci bambanci tsakanin wãyar da haske. Saboda haka, ba tare da mamaki yadda za a gwada wahayi, a cikin gida, shi ne mafi alhẽri je wani ophthalmologist.

Mene ne al'ada hangen nesa?

Wannan na gani acuity aka kwatanta da al'ada view mutanen da suka iya karanta haruffa daga cikin ƙananan layuka na tebur a nesa na 6 mita. 6/6 ko 20/20 a ƙafafunsa - wani gwargwado na al'ada na gani acuity. A farko lamba ne nesa daga wanda rajistan hangen nesa. A karo na biyu da lambar ne nesa daga abin da kullum gani mutane zai iya karanta wannan layi a kan tebur.

Idan na biyu da lambar shi ne karami fiye da farko lamba - na fi nagartacce, idan more, sa'an nan kasa al'ada. Index 20/10 (6/3) na nufin cewa wata gani a nesa na 6 mita, kuma wanda yi view ne a cikin al'ada range, karanta wannan line daga 3 mita. Don ƙarin bayani, wanda aka dauke al'ada da hangen nesa, ana iya gano kawai da wani ophthalmologist.

Mai amfani, neman a duba allo, da ido tsokoki ne immobile. By halitta su ne halin da aiwatar. A tsawon lokaci na aiki da kuma kara maida hankali - wadannan ne ƙarin ido iri. Bugu da kari, da allon azaman haske Madogararsa ne a na'urar aiki bambanci, yayin da takardar da bayyana takarda - wani m bambanci. Allon image ne da kuzari sabunta tare da low mita, wanda ya haddasa wani flicker. A sakamakon haka, idanunku samun gaji, akwai ciwon kai, irritability, juyayi da tashin hankali da kuma danniya. A mafi muhimmanci gefen sakamako na kwamfuta ne da ikon kai ga ci gaban myopia.

Yana iya kare daga high ƙuduri na da duba, da kuma haka wani more m da kuma bayyana hoton. A wannan yanayin, shi rage-rage gajiya gani sashin jiki. Lokaci-lokaci kamar yadda wani m mayar da idanunsa daga duba zuwa gefe, da kuma yi sauki darussan da gymnastics da ido.

A sakamakon ci gaba da aiki a kan kwamfuta ne a "bushe ido ciwo", wanda ke nufin cewa bushewa da ocular surface. Ga masu rigakafin shawarar da wadannan motsa jiki: zazhmurte yawa, sa'an nan kuma bude idanunku bayan 2-3 seconds. Maimaita 10-20 sau. Kada ka manta da cewa kwamfuta hangen nesa da kuma sosai juna.

Kada ku kasance m, kai kowane awa daya kawai 2-3 minti wannan sauki motsa jiki, da kuma shi zai taimake adana hangen nesa. Kada ka manta da cewa ta hanyar da sashen gani, muna samun 90% na dukkan bayanai daga waje duniya.