Hyperopia - shi ke mai da ko wani debe? A Sanadin hyperopia. farsightedness shekaru

Mun ji sau da yawa tambayoyi uninformed mutane game da hyperopia - shi ne da ko debe. Domin daidai amsa wadannan tambayoyi, shi wajibi ne don gane manufa da gawawwakin wani mutum da kuma gano da yiwu matsaloli da suka taso.

Eye - wannan shi ne daya daga cikin mafi hadaddun gabobin a cikin jikin mutum. The hulda da na gani tsarin da cerebral bawo ba ka damar maida da haskoki na haske ya fito daga waje duniya cikin na gani images. Don gane da yadda wannan ya faru, kana bukatar ka yi la'akari da abin da yake a cikin adam ido.

A tsarin da ido

The ido ne mai matukar hadaddun Tantancewar tsarin da ta ƙunshi mutane da yawa sassa.

1. Cornea. Ta hanyar da shi, hasken tãguwar ruwa shigar da ido. Yana wakiltar wani kwayoyin ruwan tabarau da wanda mayar da hankali a kan bamban tarnaƙi na siginan.
2. Sclera - m daina kai hare hare opaque ido, wanda ba a rayayye da hannu a dauke da fitar haske.
3. Iris - wani abu kamar kyamara budewa. Wannan bangare shirya da ya kwarara da haske barbashi da kuma aikin wani ado aiki, tabbatas da launi na mutum ido.
4. Almajiri - da rami a Iris cewa shirya adadin haske haskoki shigar da ido, kuma ma ciyawa daga cikin masu lankwasa dõmin karkatarwa haskoki.
5. Lens - na biyu ruwan tabarau ikon a cikin jikin mutum, located nan da nan bayan da Iris. Dangane da nisa zuwa abu ya canjãwa ta Tantancewar iko. A wani kananan nesa da shi qara a manyan - raunana.
6. Akan tantanin ido - da mai siffar zobe surface, wanda aka kimanta uwa da waje duniya. Bugu da ƙari, cikin haske wucewa ta biyu na gama ruwan tabarau, da dama a kan haske a jikin a cikin inverted form. A bayanin da aka sa'an nan tuba zuwa lantarki hasken dake fitowa.
7. Macula - tsakiyar ɓangare na akan tantanin ido, wanda gane bayyananne launi image.
8. Na gani jijiya - na'ura mai sarrafa ta akan tantanin ido a cikin jijiyar zuwa kwakwalwa bayani.

Nau'in na hangen nesa matsaloli

Vision matsaloli na iya faruwa a kowane zamani gaba daya (na iya zama ko da m). A sabili da wasu daga cikinsu - a take hakkin da akan tantanin ido ko na gani jijiya aiki. Duk da haka, mafi yawan gani tsarin cututtuka tsokani take hakkin Refractive halaye na ido. A sakamakon da aka defocusing, da kuma mutumin da ya rasa ikon ganin abu a fili. Wannan ne gaji da damuwa da mutum hangen nesa. "Plus" da "debe" a wannan yanayin koma zuwa mataki na refraction haske (ko bai isa ba haskoki ake refracted ko refracted kamar yadda da yawa). Akwai da dama na asali iri na gani hanawa a cikin mutane.

Myopia - wannan ne short-sightedness

A nearsightedness mutum ba ya ganin abubuwa da suke da nisa. Kusa da al'ada gannai. A wannan cuta, za ka iya karanta wani littafi, amma da dama daga cikin gidan, wanda aka located a fadin hanya, za mu iya riga gani.

Far-sightedness - wani "da" ko "debe"?

Bari mu koma babban tambaya. Saboda haka, yanzu-sightedness - wani "da" ko "debe"? Farsightedness (hyperopia shi ne) - yana da Heart hangen nesa, a cikin abin da wani mutum ne mara kyau rarrabe abubuwa da suke kusa, amma daidai rarrabe lafiya daki-daki, m abubuwa.

Saboda haka, da ikon maki, takardar sayen magani da haƙuri da aka auna a diopters. Tare da hyperopia sa gilashin da tattara sakamako, wanda yin kashi da ruwan tabarau ayyuka. Wadannan windows ake kira kyau, kuma ya zuwa yanzu-sightedness - wani "da." Ko "korau" misali, da ake amfani da gajeren-sightedness. Saboda haka, lura da used gilashin tare da watsi da sakamako, wanda ake kira korau.

Presbyopia - Abin da yake da shi?

Farsightedness shekaru a wani likita yanayi ne ake kira presbyopia, kuma mafi yawa samu a mutane a kan shekaru 40 da. A cuta ne ya sa ta asarar elasticity da ruwan tabarau da aka bayyana da asarar ikon canja mayar da hankali a lokacin da ido translation kalle abubuwa located a daban-daban nisa.

astigmatism

Heart hangen nesa halayyar da astigmatism taso a matsayin sakamako na canje-canje a curvature da ruwan tabarau da aka bayyana a cikin daidai refraction haske haskoki. Da shi da ɗan gurbata saboda wannan hoto na waje duniya.

Mene ne dalilin cataract?

A cataract ne mai matukar kowa cuta, wanda entails na gani hanawa. Mafi sau da yawa da shi ya auku a cikin tsofaffi shekaru, amma kuma iya zama sakamakon wani kwayar cutar. A bayyanuwar wannan cuta ne clouding da ruwan tabarau.

Ina ba da shawara a cikin wannan labarin to la'akari a more daki-daki al'amurran da suka shafi alaka da shi tare da farsightedness.

Babban Sanadin hyperopia

Saboda haka, kamar yadda riga ya nuna, farsightedness - shi ne mai ido cutar da siffar da aka mayar da hankali bayan da akan tantanin ido. A ci gaba da hyperopia ido shi ne dogara a kan ikon refract haske haskoki da kuma daga masauki (kaddarorin da ruwan tabarau ya canza ta da siffar dangane da nisa zuwa abu):

1. Rauni (zuwa +2 diopters).
2. Average (daga +2 zuwa +5 diopters).
3. A karfi (mafi girma fiye da +5 diopters).

Akwai dalilai guda biyu na hyperopia:

1. Too short eyeball, kuma, saboda haka, ya fi guntu tsaye axis of ido. Mafi sau da yawa, wannan cuta ne hereditary hangen nesa.
2. Ƙarancin Refractive kaddarorin da na gani tsarin. Tare da shekaru, da crystalline ruwan tabarau hasarar da elasticity da ikon dace.

Akwai kuma da alama na hade da wadannan dalilai biyu.

bayyanar cututtuka na hyperopia

Babban alama ne matalauta hangen nesa a kusa da iyaka. A wannan yanayin, abubuwa da suke da nisa, da haƙuri, Mai gani ne. Duk da haka, a kan lokaci Pathology iya inganta saboda asarar rungumar ruwan tabarau Properties.

Babban bayyanar cututtuka, gaban wadda take kaiwa shawarci likitan ido tare da zargin hyperopia, sun hada da:

1. Take hakkin da "kusa" view.
2. Take hakkin da "nisa" view.
3. Karuwan ido gajiya yayin da aiki.
4. Kayayyakin gajiya a lokacin da karanta.
5. M conjunctivitis da sauran ido kumburi tafiyar matakai.
6. Strabismus a yara.

Diagnosing matsaloli tare da gannai

Da zaran ka ji wani karu a gani acuity, bukatar neman sana'a taimako. Standard bincike hanya ya shafi wadannan matakai:

1. acuteness na binciken. A saboda wannan dalili, musamman tebur view. Yanzu amfani Sivtseva tebur Golovin ko Orlova (yafi a yara).
2. Binciken na da fundus ta yin amfani da madubi, da kuma duban dan tayi.

3. Selection da ruwan tabarau na da ikon gudanar da wani phoropter.

lura da hyperopia

Don yin ka taba dame hangen nesa matsaloli, ya kamata a shiryar da wadannan ka'idodin:

1. Tsayar da lighting yanayin.
2. Alternate jiki na gani kaya dakatar.
3. Horar da na gani tsokoki da yadda za a yi amfani da musamman bada ga idanu, da kuma tare da yin amfani da fasahar zamani (ciki har da kwamfuta da kuma Laser).
4. Farkon ganewar asali da kuma daidai hangen nesa gyara (ya hada da m lokaci-lokaci dubawa ophthalmologist).
5. Yi restorative bada, goyon baya da dama-nourished.

Aiwatar da wadannan m matakan za su kiyaye wahayin. Plus, ba shakka, kar ka manta ka wuce lokaci-lokaci Nazarin da wani ophthalmologist.

Vision gyara da aka yi tare da taimakon ido tabarau ko lambar sadarwa ruwan tabarau, wanda aka bayar ga mãsu haƙuri a cikin wani na musamman da girke-girke, bayan da cikakken bincike.

Bugu da kari, ido tiyata ke a gaba strides kuma yanzu damar mutum ya daina mamaki game da cewa, farsightedness - wani "da" ko "debe".