Mhlawumbe ungumphathi we -retinoscope wokuthenga amadivayisi , afuna idivaysi ephezulu ye-retinoscope , futhi i-mecanmed ingumenzi ochwepheshe nomhlinzeki ongahlangabezana nezidingo zakho. Hhayi nje kuphela idivaysi e-retinoscope esikhiqize iye yacebisa izitifiketi zomkhakha wamazwe omhlaba, kepha futhi singahlangabezana nezidingo zakho zokwenza ngokwezifiso. Sinikezela nge-inthanethi, inkonzo yesikhathi esifike ngesikhathi futhi ungathola ukuholwa ngochwepheshe kudivayisi ye-retinoscope . Unganqikazi ukuxhumana nathi uma unentshisekelo kwi- retinoscope device , ngeke sikuyeke phansi.