Sir,

Conjunctival epithelial tumours represent a spectrum ranging from mild dysplasia to invasive squamous cell carcinoma involving the conjunctiva as well as the cornea, and are grouped as ocular surface squamous neoplasia (OSSN).1, 2, 3 More than 20 years ago, Fraunfelder and Wingfield reported improved tumour control when excision was combined with cryotherapy as compared to excision or cryotherapy performed alone.4, 5 The limitation of surgical excision is a potential for partial excisions and possibility of stem cell failure when large areas of limbal epithelium are excised.

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