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chi-s-gn (, normal vision eye)an-s-gn (, far-sighted eye)kn-s-gn (, near-sighted eye )lan-s-gn (, astigmatic eye)s khan bak-chiu

() n (focus)

Chi-s-gn

Kn-s-gn

gn-ki siu t an-s-gn

an-s-gn, gn-ki siu t; kn-s-gn, gn-ki siu tg; n n-ni kn-sng k, chi khah e-k-tit.

an-s-gntih ka phng-bn thu-ki bk-ki. n-ni chi jt-kng p-hng-sa sio-tim, e t-t t bng-mh, chi e thang kha bngBk-ki

kn-s-gntih ng thap-bn thu-ki bk-ki. An-ni chi jt-kng p-hng-sa, i sio-tim e t-t t bng-mh, chi e thang kha bng

Bk-jn chhim jp bk-chiu u, siang png tng- lng ki-bah si-pin thang tg-ln, n-ni n i kha pi-thu mh -s kai-k mh, ch tih tg-ln cht chiah e kha-k.

Bk-jn tng- ham bk-chiu ph e th-khui e hp. N sm-mh teh beh khp-tih chi ka-k e nih li p-h bk-chiu . Bk-chiu ph k bk-chiah-mng s h eng-ia kap sik h-sn li khah be jp. Bk k i e si tm-ph i h tng- k khah be sio lim.

Bk-chiu u tng-bn ga-kak bk-si cha chha-put-to chhin-chhi hng-jn ta. I kong-ing s e sik n chi li sing-sing ln-tk bk-chiu koh se-t eng-ia.

Bk-chiu li-kak tng- kok cht tiu se-se kg, bk-si ti chiah kg lu lh ph-khang-li chiah n-n- ta-kh. Siat-s lng kan-kh sim th-khu bk-si chiah si khah che, lu be it-chn lh ph chi ma-chhut t bn. Kim-chhi bk-chiu eng-tih chi lim-pi bk-i khah che e lu-chhut li se-t.

T khah m png-keng m thang kha chheh -s che chiam-sit.

Hk-seng si j m thang - h bk-chiu siu a, che i s hi bk-chiu.

Khim-ng bk-ka lng b ln ta-lng gn- m thang beh ln m ka.

Bat thia-k th-thu ng gn chu- so bk-chiu ph-li. Chit ti-ch chin b n-tng, in-i kim-chhi ti han-tih bk-soa lng than hit tk ku t pt lng h bk.

Siat-s lng bk-chiu thi, khan ng-kun thang ng tm-ph png-se-sng, i t kn-chi, h s chiah li se bk-chiu, tk jt ki-n pi. Koh thang ng cht t khah cha-ph pk thu-hih li jia bk-chiu, chi jt kng khah be chhiah bk. N b kn-kn khah h tih chhi chai-i sian-si k i kha li tim pt mh ih.

Bk-chiu s si chu, che s chin iu-kn s, tih lim-pi i-t, n b kia-liu si chu e n chhim, i e chg khang hi-tih gn-lim, u-li beh i chin oh, kim-chhi phah phi bk-chiu ku cht s.

Siat-s bk-chiu eng-tih ku put-ch tiam m thang j.

Siat-s ta lng -s gn- bk-chiu thi, lu che-che bk-si ko, chit h p khai-khai t-tih lng. Beh t-hng chit ti-ch nng lng bn m thang sa-a, koh bk-chiu thi lng tih ng lng-ga bn-kun.