This study has the purpose of making it possible to use guidelines of the basic data to the
visually impaired students, in comparison with having any difference, after searching for
investigating the actual conditions of the errors in the Rules of Korean Spelling Systems
between the visually impaired students and the sighted students.
In order to accomplish this object, the subjects of this study are 22 visually impaired students
and 44 sighted students who got the K-WISC linguistic test of 90-120, and they have to choose
right checking at question paper which is composed of 60 words.
The results are as follows:
First, there is no difference between the visually impaired students and the sighted students,
in the errors of \'regarding to the sounds\', one of the Rules of Korean Spelling Systems.
Second, in the errors of \'regarding the morphophonemics\', one of the Rules of Korean
Spelling Systems, the percentage of the visually impaired students is remarkably higher than that
of the sighted students, and some significant differences appeared in statistics. Especially, the
percentage of error of the visually impaired students is higher than that of the sighted students
in one of the distinction of \'-이오(io)\' and\'-이요(iyo)\', \'과일을 드시오(gwa-il-eul deu-si-o)\' and
one of the rules of vowel harmony, \'아름다워(a-reum-da-wo)\', \'가까워(ga-kka-wo)\' and one of
the rules of situation of a consonant(ㅅ:sai-siot) of placed under a vowel, \'전세방(jeun-se-bang)\',\'초점(cho-tjeom)\' and the shortened \'ㅎ\' rules, \'흔타(heun-ta)\'. However, the percentage of error
of the visually impaired students was lower than that of the sighted students in one of the
shortened \'ㅎ\' rules, \'경악게(kyeong-ak-ge)\'.
Third, there is no difference between the visually impaired students and the sighted students,
in the errors of \'regarding to the others\', one of the Rules of Korean Spelling Systems. But the
percentage of the visually impaired students is higher than that of the sighted students in the
distinction of \'이/히(i/hi)\' of ending syllable of an adverb, \'가까이(ga-kka-i)\' and one of the
rules of ending of a word, \'내가 할까?(nae-ga hal-kka?)\'.