Table 1.

Clinical evaluation of donor corneal material (based on Orbis telemedicine guidelines).

Grade A	Mild epithelial oedema present. Thickness of cornea increased by 10%.
Grade B+	Mild epithelial oedema present. Descemets folds in periphery present. Peripheral endothelial changes present. Corneal thickness increased by 10–25%. Changes disappear after increasing IOP or by temperature reversal.
Grade B	Moderate epithelial oedema present. Mild stromal oedema present. Moderate descemets folds present. Mild endothelial changes present in the centre. Increase in corneal thickness by 25–30%.
Grade B−	Severe epithelial oedema with denudation of epithelium at places. Epithelium can be removed easily. Moderate stromal oedema. Descemets folds some of which are reaching the centre. Increase in thickness by 30–50%.
Grade C	All above changes in moderate to severe degree. Increase in thickness by 50–100%.
Grade D	Cornea is totally hazy and details of anterior chamber and other structures not seen.