For the first time, a focused stem cell pathway microarray analysis has been performed on fetal cornea and cultured limbal explant epithelium. CK15, CK14, CDH3, and Wnt-4 are expressed in the basal limbal epithelial cells.

Surgery with preoperative orthoptic/occlusion therapy had the highest success rates. Surgery with orthoptic/occlusion therapy was more effective in reducing exodeviation (prism dioptres per millimetre of horizontal rectus surgery), compared with surgery only.

Basal cell carcinoma (BCC) is the most common eyelid malignancy; however, orbital invasion by periocular BCC is rare, and management remains challenging. Established risk factors for orbital invasion by BCC include male gender, advanced age, medial canthal location, previous recurrences, large tumor size, aggressive histologic subtype and perineural invasion. Management requires a multidisciplinary approach with orbital exenteration remaining the treatment of choice. Globe-sparing treatment may be appropriate in selected patients and radiotherapy and chemotherapy are often used as adjuvant therapies for advanced or inoperable cases, although the evidence remains limited. We aim to summarize the presentation and treatment of BCC with orbital invasion to better guide the management of this complex condition.

PONF has a better prognosis than disease elsewhere in the body, but is still associated with significant risk of visual loss and a small risk of death. Intravenous antibiotic treatment with cautious observation may be reasonable in selected patients with a low threshold for debridement.