Table 2.

Distribution of LRCs by quadrants

	Superior temporal	Superior nasal	Inferior temporal	Inferior nasal	Total
Limbal arc length (μm)	2110 ± 150	2110 ± 150	2180 ± 140	2180 ± 140	8590 ± 210
Number of individual LRCs	123 ± 35	89 ± 31	101 ± 30	48 ± 13	361 ± 78
Percentage (%)	34 ± 10	25 ± 9	28 ± 8	13 ± 4	100

The limbal arc length was measured along the cornea–limbus boundary. Average and SD of LRC numbers were determined from measurements with 12 eyes (six mice). Percentage distribution in four quadrants is shown. A t-test showed that LRC numbers in each quadrant were significantly different from each other with criteria of p<0.0005. LRC, label-retaining cell.