Ruvara rwekuona bvunzo

Muedzo wekuona kwemavara unotarisa kugona kwako kusiyanisa pakati pemarudzi akasiyana.

Iwe uchagara munzvimbo yakasununguka mumwenje wenguva dzose. Anokuchengetedza hutano anozokutsanangurira bvunzo yacho.

Iwe unozoratidzwa makadhi akati wandei ane mavara emachira mapatani. Aya makadhi anonzi Ishihara mahwendefa. Mune mapatani, mamwe madhodhi anozoonekwa kuti aumbe nhamba kana zviratidzo. Iwe uchabvunzwa kuti uone zviratidzo, kana zvichibvira.

Sezvaunovhara ziso rimwe, muyedzo anozobata makadhi gumi nemana (masendimita makumi matatu) kubva pachiso chako ndokukumbira kuti ukurumidze kuziva chiratidzo chinowanikwa mune yega yega pateni.

Zvichienderana nedambudziko rinofungidzirwa, unogona kubvunzwa kuti uone kukura kwevara, kunyanya mune rimwe ziso zvichienzaniswa nerimwe. Izvi zvinowanzoedzwa nekushandisa chivharo chehombodo tsvuku eyedrop.

Kana mwana wako achiita kuti bvunzo iyi iitwe, zvinogona kubatsira kutsanangura kuti bvunzo ichanzwa sei, uye kudzidzira kana kuratidzira padhori. Mwana wako anonzwa kusazvidya mwoyo nezvebvunzo kana iwe ukatsanangura zvichaitika uye nei.

Kazhinji pane kadhi rekuenzanisira remavara ane mavara mazhinji ayo angangoonekwa nemunhu wese, kunyangwe vanhu vane matambudziko ekuona kwemavara.

Kana iwe kana mwana wako muchiwanzopfeka magirazi, zvipfekei panguva yekuyedzwa.

Vana vadiki vanogona kubvunzwa kuti vataure mutsauko uripakati pebhodhoro chivharo chivharo nemakepisi erimwe rakasiyana.

Iyo bvunzo yakafanana neyekuona bvunzo.

Iyi bvunzo inoitwa kuti uone kana iwe uine chero matambudziko neako mavara ekuona.

Matambudziko ekuona kwemavara anowanzo kuwira mumapoka maviri:

• Ipa kubva pakuberekwa (kwakazvarwa) matambudziko mumasero anonzwika mwenje (makoni) eitina (mwenje unonzwika musana kumashure kweziso) - makadhi eruvara anoshandiswa mune ino kesi.
• Zvirwere zvetsinga yemaziso (iyo tsinga inotakura ruzivo rwekuona kubva paziso kuenda kuuropi) - mabhodhoro emabhodhoro anoshandiswa mune ino kesi.

Kazhinji, iwe uchave unokwanisa kusiyanisa ese mavara.

Uyu muedzo unogona kuona zvinotevera kuberekwa (zviripo kubva pakuberekwa) matambudziko ekuona kwemavara:

• Achromatopsia - kukwana kwemavara upofu, uchingoona mumvuri wegrey
• Deuteranopia - kunetseka kuudza musiyano uripo pakati petsvuku / yepepuru uye girini / yepepuru
• Protanopia - kunetseka kuudza mutsauko pakati pebhuruu / girini uye tsvuku / girini
• Tritanopia - kunetseka kuudza mutsauko pakati yeyero / girini uye bhuruu / girini

Zvinetso muiyo optic nerve zvinogona kuratidza sekurasikirwa kwemavara akasimba, kunyangwe iyo kadhi kadhi bvunzo inogona kunge yakajairwa.

Iko hakuna njodzi nemuedzo uyu.

Muedzo weziso - ruvara; Chiratidzo bvunzo - ruvara; Ishihara color chiratidzo bvunzo

• Ruvara upofu bvunzo

Bowling B. Hereditary fundus dystrophies. Mune: Bowling B, ed. Kanski's Clinical Ophthalmology. 8th ed. Philadelphia, PA: Elsevier; 2016: chits.

Feder RS, Olsen TW, Prum BE Jr, et al. Inonzwisisika yevakuru vekurapa ziso ongororo yakasarudzika tsika maitiro maitiro. Ophthalmology. 2016; 123 (1): 209-236. PMID: 26581558 www.ncbi.nlm.nih.gov/pubmed/26581558.

Wallace DK, Morse CL, Melia M, et al; American Academy yeOphthalmology Inosarudzika Dzidzira Muenzaniso Pediatric Ophthalmology / Strabismus Panel. Kuongororwa kwemaziso evana Kusarudzika Muitiro Wemaitiro: I. kutariswa kwekuona munzvimbo yekutanga yekutarisira uye marongero enharaunda; II. nzwisisika ophthalmic kuongorora. Ophthalmology. 2018; 125 (1): 184-227. PMID: 29108745 www.ncbi.nlm.nih.gov/pubmed/29108745.