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H&E staining of rabbit corneas. H&E staining of corneal sections showed that CECs in the MNU + saline group remained absent throughout the observation period, and DM layer detachment was also observed in the MNU + saline group from day 14 after intervention. The CEC damage in the MNU + HRS group was obvious from day 1 to day 7. Evidence of CEC regeneration was observed from day 14. The DM remained unaffected throughout the observation period. Scale bar = 250 µm.
