• Ma lees a bifocal

Ma lees a bifocal


Tsatanetsatane wazogulitsa

Ndi gawo m'munsi mwa mandala, mandala a bifocal amawonetsa mphamvu ziwiri zosiyanasiyana za diooptric, zomwe zimapereka odwala omwe ali ndi masomphenya akutali.

Ma bifocal lenses4
Mandimu a bifocal5
Magarusi
Ma bifocal lenses6

Mosasamala kanthu za chifukwa chake mumafunikira mankhwala oyambitsidwa ndi kuwongolera kwa masomphenya, mabisi onse amagwira ntchito chimodzimodzi. Gawo laling'ono m'munsi mwa mandala lili ndi mphamvu zofunika kukonza masomphenya anu. Malindi ena onse nthawi zambiri amakhala ndi masomphenya anu. Gawo la mandala odzipereka pafupi ndi kuwongolera masomphenya kumatha kukhala imodzi mwazinthu zingapo.

Ma bifocal lenses7
Mandimu a bifocal8

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  • Ena:

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