Table Sivtseva - yakanaka mubatsiri ari nechirwere wokuratidzwa kwevanhu

chiono Human - mumwe zvikuru uye panguva imwe chete kusimba mano. Shure zvakakodzera nguva dzose kurinda. Kwidza kuti ophthalmologist vanofanira nguva nenguva basa muupenyu ose munhu.

Ongorora maonero ari ophthalmology ano

Kare USSR nemasayendisiti Sivtsev akanga afunga chinokosha chokushandisa ophthalmology ano, riri munyori akudzwe inonzi "tafura Sivtseva". Shandisa nzira iyi Pakusarudza kutarisana acuity. Nokuti dzino 12 zviratidzo vaizivikanwa: tsamba uye marin'i ane mukaha, iyo, kutangira kubva kumusoro musara kusvikira pasi zvishoma kudukupiswa. Kubva chinhambwe 5 metres kutarisana acuity kunotemwa pamwero kubva 0.1 kusvika 2.0.

Chii chinooneka acuity uye sei zvinosimbiswa nemashoko Sivtseva tafura?

Visual acuity - nekugona kwevanhu ziso okusiyanisa maviri pfungwa kuti vari voga imwe kure. nemirau Current vanoti kuti ziso rine 100% chiono unogona kusiyanisa mbiri pfungwa, munzvimbo dzokuzororera dzaiva kunze ane chisina kutsetseka rwendo miniti imwe. Saka, kuona acuity anganzi kukwanisa kuona zvakajeka uye tsanangura vakadaro kungwarira ziso digitaalinen chakarurama 100% kana 1.0. Sivtseva tafura chete yakagadzirwa kuita kuti digitaalinen chakarurama uye ona.

Pane mamiriro ezvinhu apo ziso revanhu dzinokudziridzwa saka zvakanaka kuti zvinokwanisika kufungidzira tinoshandisa 1,2 kana 1.5 kana kunyange 3.0. Nepo ziso zvirwere zvakasiyana-siyana, sezvo nearsightedness kana Kuona zviri mberi, astigmatism kana yemaziso, mwero inogona 0.5 kana 0,05.

Kazhinji kurondedzera kutarisana acuity uchishandisa pauwandu hweavo. Zvisinei, zvinofanira kucherechedzwa kuti chete 100% mufananidzo unoenderana 100% kutarisana kuona. Somuenzaniso, imwe kutarisana chokukomborerwa muna 0.2 diopters haishandurike kuti chikamu 20% ari kuona. Nhamba iyi unoenderana 49% of vasingambooni chakaipa nazvo. Kwete nyore kushandura chero nhamba kuti pauwandu hweavo uye musana. Uye kunyanya tafura iyi Sivtseva - kukura ari mbiru kuruboshwe uye kodzero vakatobatana vakaverenga migumisiro bvunzo.

How kuongorora nokuona acuity Sivtseva tafura?

A mwero akagadzirwa mabhii akadhindwa kwakasiyana-siyana yakavakwa muna 12 akatevedzana. All mabhii earufabheti wokuRussia - W, B, M, H, K, N. Mumwe mutsara repasi - tsamba duku kupfuura pamusoro. Macheki kunofanira kuitwa muimba ine chiedza chakanaka. Inoshandiswawo chaiwo rambi, nechinangwa patafura uye kuva chiedza diffused. At chinhambwe 5 metres kubva patafura maonero ari ndakaongorora Sivtseva. Murwere anofanira kugara zvakanaka uye, rave nokuvhara kuruboshwe uye zvakarurama pameso, verenga tsamba kubva patafura. Kana zvakaongororwa nyore mudane tsamba kusvika 10 yamahwindo, funga kuti ane 100% pake. Kana Anodzivisawo dzimwe nechokumusoro kwerwizi series, ari kutarisana acuity iri pakutsvaga parameters zvakarurama mbiru patafura.

Murwere anogona kugara pedyo kupfuura 5 metres kubva patafura, asi muchiitiko chino chaiyo inonyatsoita inoshandiswa kuona kwokuomerwa:

V = D / D

V mu mukana wokuti vanhu vanga ichi - kukosha kuti tinofanira kuziva, kureva, kutarisana acuity; D - kure uko murwere patafura; D - kure uko murwere chinosiyanisa mumwe nhamba pazvinhu.

Zvino, zvose kuti tafura igadzikwe Sivtseva. It anoiswa pakati maviri fluorescent mwenje kuitira kuti okuvhenekesa rinosvika 700 lumens. Rezasi pamucheto tafura inofanira kuva pane imwe nekukwirira masendimita 120 kubva pasi. Murwere agere zvakanaka, akabata musoro wake twasu, anopenya nameso vaviri rakazaruka inowanzotorwa chinzvimbo. Mune ziso rimwe dzakabatanidzwa cook chaiyo. Mukati 3 masekonzi verifiable dzinoratidza tsamba kuti kunzi. Muchiitiko chino, kutangira yakaderera uye zvishoma nezvishoma kumuka kurei zviratidzo. Kana zvose zviratidzo dzinonzi - kunge akadzivisa 100% kana 1.0 chiono. Kana mumwe kana kupfuura vatambi havasi kuzivikanwa - kukwana kutarisana acuity. Kuti uone kuti kutarisana acuity asingasviki 0.1 murwere zvishoma nezvishoma kusvika tafura ose 0.5 m, nepo hazvigoni kuona zviratidzo tafura.

Legend kuna Table Sivtseva

Kuwedzera mabhii earufabheti wokuRussia anogona kuonekwa kuti pane mbiru mbiri, izvo varehwa tsamba Latin D uye V. The nhamba D-mbiru inoratidza daro ari patafura iyo munhu ane ziso acuity akaenzana 100%, rinogona nyore kuverenga kubva kuruboshwe yakamira chiratidzo. The nhamba V-mbiru - a kusanganiswa hunhu acuity, kana nhamba iyi verenga zviri vakatsvaka 5 mamita kure.

Ndezvipi zvimwe matafura wakashandiswa ophthalmology?

Sezvo chiratidzo chinhu chinokosha chaizvo unyanzvi hwevanhu kuti kuchengetedzwa zvakanaka, pane vakawanda miedzo yaishandiswa ophthalmology, hunoita kuti aratidze mufananidzo chaiye mamiriro ziso.

• Ongorora chinooneka acuity - Sivtseva tafura (sezvazvakanyorwa kunzi mune dzimwe zvinyorwa) akasikwa kuti chinangwa ichi. Inoshandisa tsamba W, D, F, H, K, N. Orlova kushandisa tafura vana, apo tsamba anoshandiswa pachinzvimbo mifananidzo (the asiterisiki, mumwe chakuvhe, bhiza, mumwe muhadyana, ndege, dhadha, nzou, muchina, herringbone).
• siyanisa chiono bvunzo - yetafura ichi Golovin akasikwa. Inoshandisa 4 mhando optotypes - zvindori pamwe yokumbozorora rimwe 4 mativi
• Ongorora myopia uye hyperopia - kushandisa duohromny bvunzo rine sezvikamu maviri yaitwa mavara akasiyana: tsvuku uye girini, kuzorwa ichi pakanyorwa, akaronga tsamba (A, H, W, F, Ini, B, S). Mugumisiro bvunzo, zviri akatsunga kana chakaipa maziso (ziso anoona mabhii acho ezvinhu akafanana). Kana mavara ari dzvuku kumashure panhurikidzwa chete zvakajeka kupfuura pauswa, pane myopia nekusiyana - kwehurumende.
• Check nokuti astigmatism - vakawanda bvunzo inonzi Siemens Star. Musimboti Muedzo ndechokuti munhu ane kwomuzvarirwo chiono anoona pamusoro mutsetse pazasi kuti, asati asvika pakati, vanotanga usapfuura uye bindepinde mumwe. Pakati mutsara zvakare kuva pachena zvinoonekwa.