How does Gulliver protect his eyes from Blefuscudian arrows?

Gulliver protects his eyes from the Blefuscudian arrows by using his spectacles. This detail is significant in the narrative, as it underscores both Gulliver's physical stature compared to the Lilliputians and his reliance on his spectacles for vision. The use of spectacles illustrates a level of intellect and resourcefulness in dealing with the threats he faces while also highlighting the absurdity of the conflict with the diminutive Blefuscudians. The act of putting on his spectacles serves as a practical solution to safeguard one of his most vulnerable areas, while also demonstrating his unique status as a giant among the tiny inhabitants of Lilliput.