Ho na le mefuta e mengata ea khalase, ho kenyeletsoa khalase e tloaelehileng ea meralo, kapa khalase e sebetsitsoeng le ho sebelisoa libakeng tse khethehileng. Litlhoko tsa ho hloekisa le ho hloekisa khalase le tsona lia fapana. Kajeno ho tla hlahisoa mochini o hloekisang o ka hloekisang khalase ea optical.

Ka lebaka la litšobotsi tsa eona, khalase ea mahlo e tlameha ho fihlela litlhoko tsa ho nka litšoantšo tsa mahlo le boholo bo bobebe, kahoo lik'hemik'hale tse khethehileng li hloka ho eketsoa nakong ea ts'ebetso ea ho hloekisa ho qhala lerōle le matheba holim'a khalase, 'me ho hlokahala metsi a hloekileng ho hloekisa khalase. Lisebelisoa tsa ho hloekisa khalase ea mahlo tse hlahisoang ke k'hamphani ea rona li sebelisa sebopeho se otlolohileng, tlhoekiso ea maemo a mararo, 'me li na le litanka tse tharo tsa metsi. E hlatsuoa ka spray ea khatello e phahameng, ho hlatsoa meriana le metsi a hloekileng. Kamora lihlopha tse peli tsa ho omisa, ts'ebetso ea ho hloekisa e qetella e phethetsoe.