Related Experiment Video
Updated: May 18, 2026

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery
Published on: April 14, 2026
Commercially available rigid gas-permeable contact lens for protecting the cornea from drying during vitrectomy with
Motohiro Kamei1, Nagakazu Matsumura, Hirokazu Sakaguchi
1Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
Purpose:
We evaluated the usefulness of commercially available materials for protecting the cornea from drying during vitrectomy with a wide-angle viewing system.
Methods:
THREE VITREORETINAL SURGEONS EVALUATED FUNDUS VISIBILITY DURING VITRECTOMY ON THE IMAGES OF FIVE STUDY MATERIALS USED ON THE CORNEA: balanced saline solution, a viscoelastic agent, a vitrectomy contact lens, a rigid gas permeable (RGP) contact lens, and a soft contact lens. Fundus visibility was graded using the following scale: grade 1, unclear; grade 2, slightly unclear; grade 3, clear; and grade 4, very clear.
Results:
RESPECTIVE SCORES FOR EACH MATERIAL USED DURING CORE VITRECTOMY AND MEMBRANE REMOVAL WERE: balanced saline solution, 3.3/3.3; viscoelastic agent, 3.8/3.3; vitrectomy contact lens, 3.3/4.0; RGP contact lens, 4.0/3.9; soft contact lens, 1.1/not applicable.
Conclusion:
The RGP contact lens provided visibility similar to or clearer than that obtained with other methods. Because of its ease of use and lower cost, use of the RGP contact lens is ideal during vitrectomy performed with a wide-angle viewing system.
Related Concept Videos
Angle Closure Glaucoma: Treatment
Ophthalmic Drug Delivery Systems
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
