Comparisons of Cornea Cold, a New Corneal Storage Medium, and Optisol-GS

Area of Science:

• Ophthalmology
• Tissue Engineering
• Biomaterials Science

Background:

• Donor cornea quality is crucial for successful transplantation.
• Standardized storage media are essential for preserving corneal tissue viability.
• Evaluating different storage solutions impacts clinical outcomes.

Purpose of the Study:

• To compare the efficacy of Optisol-GS and Cornea Cold storage media.
• To assess the impact of storage media on donor corneal tissue quality.
• To determine the optimal storage duration for corneal grafts.

Main Methods:

• Seventeen donor cornea pairs were divided between Cornea Cold and Optisol-GS.
• Endothelial cell loss (ECL), central corneal thickness (CCT), and endothelial cell density (ECD) were measured.
• Qualitative assessment using slit lamp examination at 7 and 21 days.

Main Results:

• No significant differences in qualitative corneal health or endothelial cell loss (ECL) between storage groups at 7 and 21 days.
• Central corneal thickness (CCT) was significantly higher in the Cornea Cold group at 7 days (P=0.001) but comparable by 21 days (P=0.70).
• Endothelial cell density (ECD) showed no statistical difference between Cornea Cold and Optisol-GS at 7 or 21 days.

Conclusions:

• Both Optisol-GS and Cornea Cold provide comparable preservation of donor corneal tissue.
• ECL and ECD remain statistically similar between the two storage media up to 21 days.
• Initial CCT differences observed at 7 days resolve by 21 days, indicating long-term viability with both solutions.