Owerenga akuofesi ndi oyenera ma presbyopics omwe amafunikira kwambiri pamasomphenya apakati komanso pafupi, monga ogwira ntchito muofesi, olemba, ojambula, oimba, ophika, ndi zina zambiri….
Maonekedwe: Madera apakati ndi apafupi kwambiri; Mapangidwe ofewa kwambiri omwe amachotsa zotsatira za kusambira; Kusintha nthawi yomweyo
Cholinga: Ma Presbyopes omwe amagwira ntchito pafupi ndi apakatikati
Mgwirizano pakati pa masomphenya ndi mtunda wa chinthucho
Wowerenga II 1.3 m | Kufikira mamita 1.3 (4 ft) owoneka bwino | |
Wowerenga II 2 m | Kufikira mamita 2 (6.5 ft) owoneka bwino | |
Wowerenga II 4m | Kufikira mamita 4 (13 ft) owoneka bwino | |
Wowerenga II 6 m | Kufikira mamita 6 (19.6 ft) owoneka bwino |
MTUNDU WA LENS: Wantchito
CHOLINGA: Magalasi akuntchito kwa mtunda wapafupi ndi wapakati.
* Magawo apakati komanso apafupi kwambiri
*Mapangidwe ofewa kwambiri omwe amachotsa kusambira
* Kuzama kwamasomphenya kusinthika kwa wogwiritsa ntchito aliyense
*Ergonomic udindo
* Mawonekedwe abwino kwambiri
* Kusintha kwanthawi yomweyo
•Zigawo zapayekha
Kutalika kwa Vertex
Pantoscopic angle
Kukulunga angle
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