Clinical Study

Effect of Hyaluronic Acid/Trehalose in Two Different Formulations on Signs and Symptoms in Patients with Moderate to Severe Dry Eye Disease

Table 2

Changes in the visual analogue scale (VAS) for each question after 1 week treatment with either a gel containing hyaluronic acid, trehalose, and carbomer (HTC-gel) or eye drops containing hyaluronic acid (HT) PRN.

BaselineStudy day value (time effect, ANOVA) value (between groups)

“What is your global satisfaction concerning your eyes when awakening in the morning?”
HT26.9 ± 22.525.0 ± 22.80.480.59
HTC-gel27.1 ± 26.026.8 ± 25.1

Feeling of swollen eyelid when awakening
HT23.9 ± 23.821.9 ± 24.50.680.38
HTC-gel24.9 ± 25.525.6 ± 25.2

Subjective evaluation of ocular comfort during the night
HT25.7 ± 23.126.2 ± 24.20.560.36
HTC-gel27.0 ± 25.024.9 ± 23.3

Quality of sleep
HT29.8 ± 30.623.9 ± 26.40.010.87
HTC-gel30.7 ± 29.825.5 ± 29.1

Mean VAS score
HT26.7 ± 21.323.7 ± 20.70.080.67
HTC-gel27.5 ± 23.625.7 ± 22.5