Ua kom qhov tob tob ntawm myopia

Lub nplhaib tsom iav txo qhov defocus ntawm para-center thiab txo daim ntawv deprivation ntawm qhov muag qhov muag tsis pom kev.Nws muaj kev pom dav dav, ua kom yooj yim rau hnav thiab pom, txo qhov muag qaug zog, ua rau cov tub ntxhais kawm kev txais tos zoo hauv chav kawm, thiab lawv cov qib nce ntxiv.
Thaum saib cov khoom ntawm qhov deb ntawm 5 meters, lub qhov muag tsis tas yuav hloov kho.Thaum saib cov fonts nyob ze (33mm), qhov kev hloov ntawm lub qhov muag yog 300 degrees.Thaum tus neeg mob 300-degree myopia nyeem thiab sau ntawv yam tsis muaj tsom iav, nws tuaj yeem pom cov font ntawm phau ntawv kom meej meej yam tsis tau kho qhov muag, thiab tus neeg mob qhov muag tsis pom kev zoo li qub.Yog tias koj tau nruab nrog 300-degree myopia tsom iav, koj xav tau 300-degree hloov kho kom pom cov font kom meej meej thaum koj nyeem thiab sau nyob ze.Qhov no ua rau kom qhov kev hloov kho ntawm lub qhov muag.Tom qab ib tug ntev lub sij hawm, lub qhov muag yog nquag qaug zog, lub axis ntawm lub qhov muag raug yuam kom elongate, thiab cov degree ntawm myopia yuav tob zuj zus.Yog li ntawd, ordinar y lo ntsiab muag (spherical nto, aspherical nto) yog ib qho tseem ceeb (tshwj xeeb tshaj yog cov hluas) uas ua rau cov neeg mob myopic siv lawv ob lub qhov muag nyob ze thiab nce qib ntawm myopia.