“…And, while retinal and optic nerve toxicities are known adverse effects of paclitaxel, we are not aware of corneal toxicity as a reported side effect [ 23 – 27 ]. Herceptin and related drugs, however, have been associated with adverse effects on the anterior segment with dry eye, epiphora, blurred vision, and conjunctivitis being the most common [ 12 , 28 , 29 ]. It is not surprising that these drugs might have an effect on the ocular surface given the expression of HER receptors by the corneal, limbal, and conjunctival epithelia [ 30 ] and the role of HER family tyrosine kinase receptors on cell differentiation, proliferation, and migration [ 31 , 32 ].…”