Chogulitsachi chimagwiritsa ntchito ukadaulo woyambirira wa optical stereo focusing observation, womwe ungayang'ane masomphenya a wowonera m'malo opapatiza kuti apange malo owala komanso okulitsidwa a magawo atatu, zomwe zimapangitsa kuti pakhale malo apadera a kuzama kwa magawo atatu kuti ayang'aniridwe ndi kuchiritsidwa.
4.0x Chitsulo cha Chitsulo Chopangira Opaleshoni ya ZachipatalaMagalasi Okulitsa a Magnifier a ENT, Chipatala cha Mano, ndi Mankhwala a Ziweto.