Ha re se re fetile lilemo tse mashome a mahlano 'me lilemo li setse lifahleho lifahlehong tsa rona, ho bonahala eka mahlo a rona a re bolella ka khutso hore re hloka lerato le tlhokomelo e eketsehileng. Ka hona, seo ke batlang ho u tsebisa sona kajeno ke likhalase tse monate tsa ho bala tse monate. Likhalase tsena tsa ho bala, tse nang le moqapi o ikhethang le mesebetsi e babatsehang, li fetohile moemeli oa ho phela hammoho ha feshene le ts'ebetso.
Pele ho tsohle, e sebelisa lilense tsa presbyopia tsa boleng bo holimo, 'me phello ea eona ho lokisa presbyopia le ho ntlafatsa pono ea hlolla. Mantsoe ana a manyenyane le lintlha tse qaqileng li tla phela hape ka bolekane ba likhalase tsena tsa ho bala. Habohlokoa le ho feta, e ka boela ea fokotsa mokhathala oa mahlo, ea thibela ho se phutholohe ho bakoang ke ho etsa liphetoho khafetsa, ea ntlafatsa boemo ba rona ba ho bala, 'me ea etsa hore phihlelo ea rona ea ho bala e be e phutholohileng le ea tlhaho.
Ntle le lilense tse kholo, likhalase tsena tsa ho bala motheo oa metsi le tsona li na le moralo o makatsang. Foreimi e entsoe ka thepa ea polasetiki ea boleng bo holimo ho netefatsa hore e tšoarella, kahoo ha ho hlokahale hore u tšoenyehe ka ho fetola likhalase tsa hau nako e telele. Ebang ke mosebetsing kapa boikhathollong, likhalase tsena tsa ho bala li ka tsamaea le uena kamehla, li bontša lehlakore la hau la feshene le le letle.
Ho feta moo, re hlophisitse ka ho khetheha lihokelo tsa polasetiki tse tenyetsehang bakeng sa likhalase tsena tsa ho bala. U e sutumelletsa feela ka bonolo ebe ea koala, e etsa hore ho be bonolo ho e jara le ho e boloka hohle moo u eang.
Likhalase tsena tsa ho bala ha li shebane le ts'ebetso feela empa li boetse li etsa hore boiphihlelo ba hau ba mosebelisi bo be bonolo le ho ba bonolo. Bophelong ba kajeno bo potlakileng, hangata re hlokomoloha bophelo ba rona ba 'mele le bophelo ba mahlo. Leha ho le joalo, tsela eo re itšoarang ka eona e boetse e ama boleng ba bophelo ba rōna. Ka hona, ho khetha likhalase tsa boleng bo holimo tsa ho bala ke qeto e bohlale bophelong ba rona ba letsatsi le letsatsi. Ho sa tsotellehe hore na u ntse u buisana le metsoalle kapa u thabela buka e monate u le mong, likhalase tsena tsa ho bala li ka u fa pono e ncha, tse u lumellang hore u iponahatse ka kholiseho le ka bokhabane.
Ka bokhutšoanyane, likhalase tsena tsa ho bala li ke ke tsa lokisa presbyopia feela le ho ntlafatsa pono, empa hape li fokotsa mokhathala oa mahlo, li thibela ho fetoha khafetsa, le ho ntlafatsa boemo. Lilense tsa eona tsa boleng bo holimo tsa ho bala, thepa ea polasetiki ea boleng bo holimo, le moralo o tenyetsehang oa hinge oa selemo li e etsa khetho e khahlisang le e rarahaneng. Ho khetha likhalase tsena tsa ho bala ke letsete la boleng ba bophelo ba hau le ho itlhokomela. Etsa hore likhalase tsena tsa ho bala e be molekane oa hao ea khutsitseng bophelong, tse u tlisetsang phihlelo e babatsehang ea ho bala le ea bophelo.