[New permanent humidity chamber in dry eye disorders]

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Materials Science

Background:

• Corneal lubrication and eyelid closure disorders necessitate eye protection.
• Traditional monoculus application causes dermal irritation and fails to achieve optimal humidity due to air leakage.
• Existing methods present challenges in maintaining adequate ocular surface hydration.

Purpose of the Study:

• To introduce and evaluate a novel tape-free permanent humidity chamber for ocular surface protection.
• To compare the efficacy of the new device against traditional monoculus in maintaining ocular humidity.
• To assess the impact of the device on patient comfort and skin irritation.

Main Methods:

• Development of a spectacle frame-mounted, tape-free permanent humidity chamber.
• Testing the device's ability to maintain relative humidity above 98% over extended periods.
• Comparative clinical evaluation involving five healthy subjects and two patients with lagophthalmos, assessing humidity levels achieved by both the chamber and monoculus.

Main Results:

• The permanent humidity chamber consistently achieved and maintained relative humidity exceeding 98% for eight hours or longer.
• Both healthy subjects and patients with lagophthalmos experienced superior humidity levels with the chamber compared to the monoculus.
• The device significantly minimized skin irritation associated with prolonged eye covering.

Conclusions:

• The permanent humidity chamber is an effective and well-tolerated alternative to monoculus for managing dry eye conditions.
• This innovative device offers improved ocular surface hydration and reduced patient discomfort.
• The findings suggest a significant advancement in non-invasive management of ocular surface drying disorders.