The goal of this clinical trial is to evaluate the preliminary efficacy of the use of insulin eye drops in the control of dry eye disease in patients with topical hypotensors, compared to placebo (artificial tears). The main question aims to answer whether glaucoma patients treated with topical hypotensors could benefit from the use of insulin eye drops for the treatment of dry eye. Participants will be assigned to one of the two treatment arms and will be required to attend four follow-up visits (baseline, 1, 3, and 6 months).
Patients will be recruited in Madrid. Patients with dry eye disease and topical glaucoma treatment will be identified through the Ophthalmology clinic. They will be directly referred to a physician who is participating in this study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
100
Topical insulin 1UI/ml 4 times a day
Artificial tears 4 times a day
Hospital Clinico San Carlos
Madrid, Madrid, Spain
RECRUITINGChanges in dry eye symptoms from baseline to 6 months after treatment time
Dry eye symptoms will be evaluated using OSDI
Time frame: From baseline to 6 months after treatment
Change of corneal staining from baseline to 6 months after treatment
Corneal staining will be evaluated on the slit-lamp and on slit-lamp images
Time frame: From baseline to 6 months after treatment
Change in corneal aesthesiometry from baseline to 6 months after treatment
Aesthesiometry will be evaluated using Cochet Bonnet
Time frame: From baseline to 6 months after treatment
Change in conjunctival hyperemia from baseline to 6 months after treatment
Conjunctival hyperemia will be evaluated using Keratograph
Time frame: From baseline to 6 months after treatment
Change in non-invasive tear film break-up time from baseline to 6 months after treatment
Non-invasive tear film break-up time will be evaluated using Keratograph
Time frame: From baseline to 6 months after treatment
Change in light dispersion from baseline to 6 months after treatment
Light dispersion will be evaluated using the Optical Quality Analysis System
Time frame: From baseline to 6 months after treatment
Change in cytokine levels from baseline to 6 months after treatment
Cytokine leves will be evaluated using immunoassay
Time frame: From baseline to 6 months after treatment
Change in therapeutic compliance from baseline to 6 months after treatment
Therapeutic compliance will be evaluated using Medication adherence rating scale (MARS). The total score ranges from 0-10 with a higher score indicating better adherence.
Time frame: From baseline to 6 months after treatment
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