Table 1. Mean value of ocular surface parameters measured preoperatively, at 1 day, 1 and 2 months after cataract surgery.
Parameters | Dry eye group | |||||||
Preoperative value | 1 day | 1 month | 2 months | Overall | Preop. Vs 1 day | Preop. vs 1 month | Preop. vs 2 months | |
TBUT (sec) | 4.2±0.4 | 3.1±0.3 | 3.7±0.5 | 4.1±0.4 | <0.001 | <0.001 | <0.001 | <0.001 |
Schirmer test (mm) | 5.1±0.5 | 4.3±0.5 | 4.5±0.8 | 5.2±0.6 | 0.894 | 0.816 | 0.924 | 0.557 |
Corneal sensitivity threshold (mm) | 58.4±1.7 | 55.1±1.8 | 57.8±1.5 | 58.1±1.7 | 0.016 | 0.024 | 0.021 | 0.019 |
Corneal staining score | 1.5±0.4 | 2.1±0.8 | 1.2±0.7 | 0.7±0.3 | 0.024 | 0.041 | 0.031 | 0.035 |
No dry eye group | ||||||||
TBUT (sec) | 13.5±2.5 | 11.4±2.3 | 13.4±2.7 | 14.1±3.1 | <0.001 | <0.001 | <0.001 | <0.001 |
Schirmer test (mm) | 17.4±5.9 | 15.7±4.8 | 16.2±5.1 | 16.7±5.4 | 0.829 | 0.529 | 0.241 | 0.268 |
Corneal sensitivity threshold (mm) | 55.9±1.4 | 51.2±0.9 | 54.1±1.2 | 56.1±1.3 | 0.295 | 0.262 | 0.418 | 0.350 |
Corneal staining score | 0.4±0.1 | 0.7±0.2 | 0.5±0.1 | 0.3±0.1 | 0.031 | 0.035 | 0.029 | 0.027 |
TBUT = tear film break-up time
Continuous values were analyzed by linear mixed model with Bonferroni post hoc analysis.
Non-continuous values were analyzed by generalized linear mixed model analysis with Bonferroni post hoc analysis.