J Korean Ophthalmol Soc.  2024 Feb;65(2):108-116. 10.3341/jkos.2024.65.2.108.

Development of an Instrument for Slit-lamp Examination of Donor Corneas in Preservation Medium

• Nam GH
• Kim DR
• Yoon YC
• Yang SW
• Whang WJ
• Byun YS
• Hwang HB
• Na KS
• Lee HS
• Chung SH
• Kim EC
• Cho YK
• Kim HS
• Hwang HS

• KMID: 2552428
• DOI: http://doi.org/10.3341/jkos.2024.65.2.108

Abstract

Purpose
To evaluate the effectiveness of an instrument devised for slit-lamp examination of donor corneas suspended in preservation medium.
Methods
The study examined two donor corneas received at Yeouido St. Mary's Hospital in February 2023 and March 2023. The instrument has three main components: a plastic holder to hold the preservation medium bottle, a cube with a mirror for reflecting the slit beam, and a stand to attach the device to the slit-lamp. Using the instrument, the donor corneas were examined via slit-lamp: microscopy with the endothelium facing upward and downward. Specular microscopy and anterior segment optical coherence tomography (OCT) were also performed on the preserved donor corneas.
Results
Slit-lamp examination of donor corneas in preservation medium using the instrument showed overall corneal buttoning and optical sections of the donor cornea. Using specular reflection and retroillumination, the endothelial layer was partially visible. However, specular microscopy and anterior segment OCT could not examine the donor cornea in preservation medium using the instrument.
Conclusions
The devised instrument facilitates slit-lamp examination of donor corneas in preservation medium, enabling a qualitative assessment of donor corneas before corneal transplantation surgery.

Keyword

Corneal transplantation, Donor cornea, Slit-lamp examination