Tšebeliso ea likhalase tsa ho bala
Likhalase tsa ho bala, joalo ka ha lebitso le bolela, ke likhalase tse sebelisoang ho lokisa pono ea hole. Batho ba nang le hyperopia hangata ba na le bothata ba ho shebella lintho tse haufi, 'me likhalase tsa ho bala ke mokhoa oa ho lokisa. Likhalase tsa ho bala li sebelisa moralo oa lense ea convex ho lebisa leseli ho retina, ho thusa bakuli ho bona lintho tse haufi ka ho hlaka.
Ntle le ho lokisa ponelo-pele, likhalase tsa ho bala li ka boela tsa sebelisoa ho lokisa myopia. Bakeng sa bakuli ba nang le myopia e itekanetseng, likhalase tsa ho bala li ka fana ka khalemelo e itseng. Lilense tsa likhalase tsa ho bala li etselitsoe ho tataisa leseli ka pel'a retina, kahoo li lokisa pono.
Mokhoa oa ho khetha likhalase tsa ho bala tse u tšoanelang
Ha u khetha likhalase tsa ho bala, u lokela ho nahana ka lintlha tse latelang:
1. Boitsebiso
Lisebelisoa tsa likhalase tsa ho bala li na le tšusumetso e kholo ho boleng le boiketlo ba likhalase. Lisebelisoa tse tloaelehileng li kenyelletsa polasetiki, tšepe.
Likhalase tsa ho bala tse entsoeng ka polasetikili bobebe ebile li hana ho apara, empa li ka ama ts'ebetso ea likhalase tse thibelang mokhathala.Likhalase tsa tšepe tsa ho balali hanana le mokhathala, empa li ka ba boima le ho ba le mengoapo.
2. Mofuta oa foreimi
Mofuta oa foreimi ea likhalase tsa ho bala o boetse o na le tšusumetso e kholo ho tsitsang le boiketlong ba likhalase. Mefuta e tloaelehileng ea foreimi e kenyelletsa foreimi e felletseng,foreime ea halofo le foreimi.
Bophara ba foreimi ea likhalase tse feletseng tsa ho bala li kholoanyane, tse ka fanang ka tšehetso e molemo, empa li ka ama ponahalo. Likhalase tsa ho bala tse nang le halofo li na le foreimi e pharaletseng e leka-lekaneng 'me li ka fana ka pono e ntle, empa li ka' na tsa se ke tsa tsitsa ka ho lekaneng. Likhalase tsa ho bala tse se nang foreme li fana ka tokoloho le botle bo boholo, empa li kanna tsa se tsitse ka ho lekana.
3.Degree
Matla a likhalase tsa ho bala a tšoana le a likhalase tse tloaelehileng, tse kenyelletsang myopia le ho bonela hole. Ha u khetha likhalase tsa ho bala, u lokela ho khetha matla a loketseng ho latela boemo ba hau ba pono.
Qetello
Likhalase tsa ho bala ke mofuta oa likhalase tse ka thusang batho ho lokisa mathata a pono. Ha u khetha likhalase tsa ho bala, u lokela ho nahana ka lintlha tse kang thepa, mofuta oa foreimie, matla, le lebitso ho khetha likhalase tse u tšoanelang. Ho roala likhalase tsa ho bala ka nepo ho ka thusa batho ho ikamahanya hantle le bophelo le mosebetsi.
Haeba u batla ho tseba haholoanyane ka mekhoa ea feshene ea likhalase le lipuisano tsa indasteri, ka kopo etela sebaka sa rona sa Marang-rang 'me u ikopanye le rona neng kapa neng.
Nako ea poso: Nov-10-2023