* Isitokwe esicindezelayo sakho kokubili ukugqoka okuvamile nokusemthethweni, idizayini ephezulu emathangeni enokucindezela okuthweswe iziqu ku-13-18mmHg.
* Ifaka idizayini yezinzwane evulekile kanye nokuvuleka komlenze okungabophi ukuvimbela ukucasuka kwesikhumba ngemva kwesikhathi eside sokuguga.
* Ugqinsi olwengeziwe lwengezwe endaweni yezinyawo ukuze unikeze ukwesekwa okwengeziwe nokunethezeka ngenkathi umile futhi uhamba.