The use of topical MMC 0.02% for 28 consecutive days to treat primary or recurrent CCIN was effective and showed a low recurrence rate. Corneal erosion occurred in 17.4% of cases and can occur as late as 24 months after treatment.

The scoring system model presented is suitable for clinical practice in differentiating SCC from preinvasive ocular surface lesions by IC and can be better evaluated with prospective use.

The use of 1% TB eye drops is an efficient method for the clinical diagnosis of ocular surface squamous neoplasia and premalignant lesions. Nevertheless, the intensity of the staining does not correlate with the degree of malignancy of these tumors.