Fig. 2

Comparison of NBG and ABG on FL indicators, index of tear film and meibomian gland function in boys and girls. *** There was a significant difference between the two groups; P value <0.001. ** There was a significant difference between the two groups; P value <0.01. Notes: A showed the difference of index of tear film; B showed the difference of tear film LLT between NBG and ABG in boys; C showed the difference of tear film LLT between NBG and ABG in girls. In the case of gender, horizontal comparison of indicators with color difference represents significant difference. D showed the comparison of marx line between NBG and ABG in boys; E showed the comparison of meibomian gland expression between NBG and ABG in boys. Abbreviation: LLT, lipid layer thickness; NBG, normal blinking group; ABG, abnormal blinking group; BUT, tear film breakup time; TH, tear meniscus height; AVG, the average of tear film lipid layer thickness; MIN, the minimum of tear film lipid layer thickness; MAX, the maximum of tear film lipid layer thickness; OPI, ocular protection index.