Analysis of the effect of light intensity on eye fatigue complaints and concentration in teaching and learning in the lecture room

The intensity of light in the classroom has an important role in creating comfortable teaching and learning. This research aims to analyze the effect of light intensity on the comfort of the teaching and learning process in lecture room. The research was carried out using a survey method and measuring the light intensity on students' study tables. The measurement results show that the light intensity ranges from 109 lux to 212 lux, which is below the minimum standard for light intensity for study rooms according to SNI 03-6197:2000, namely 250 lux. A total of 43 students were respondents in this research, with comfort data measured using a Likert scale questionnaire. Data analysis shows that low light intensity has an impact on learning concentration levels that are less than optimal. As many as 58% of respondents stated that light intensity affected study concentration. Meanwhile, 67% of respondents stated that low light intensity causes eye fatigue. This study recommends increasing light intensity in classrooms to support more effective teaching and learning processes.