
Owerenga mabuku a muofesi ndi oyenera ma presbyopics omwe amafunikira kwambiri maso apakatikati komanso pafupi, monga ogwira ntchito m'maofesi, olemba, ojambula, oimba, ophika, ndi zina zotero….
Khalidwe: Malo otakata kwambiri apakati komanso pafupi; Kapangidwe kofewa kwambiri komwe kamachotsa mphamvu yosambira; Kusintha nthawi yomweyo
Cholinga: A Presbyope omwe amagwira ntchito patali pafupi komanso pakati
Ubale pakati pa momwe masomphenya amagwirira ntchito ndi mtunda wochokera ku chinthucho
| Wowerenga II 1.3 m | Kufikira mamita 1.3 (4 ft) a maso owoneka bwino | |
| Wowerenga II 2 m | Kufikira mamita awiri (6.5 ft) a maso owoneka bwino | |
| Wowerenga II 4 m | Kufikira mamita 4 (13 ft) a maso owoneka bwino | |
| Wowerenga II 6 m | Kufikira mamita 6 (19.6 ft) a maso owoneka bwino |


Mtundu wa Lenzi: Zantchito
CHOLINGA: Lenzi yantchito ya mtunda wapafupi ndi wapakati.
* Zigawo zapakati komanso zapafupi kwambiri
*Kapangidwe kofewa kwambiri komwe kamachotsa mphamvu yosambira
* Kuzama kwa masomphenya kumasintha kwa wogwiritsa ntchito aliyense
*Malo okhazikika
*Chitonthozo chabwino kwambiri chowoneka bwino
*Kusintha nthawi yomweyo
• Magawo a munthu payekha
Mtunda wa Vertex
Ngodya ya Pantoscopic
Ngodya yokulunga
IPD / SEGHT / HBOX / VBOX / DBL
