What was the chief complaint of Juan Martinez, the worker who reported sawdust in his eyes?

The chief complaint of Juan Martinez, who reported sawdust in his eyes, centers around eye irritation. This symptom is commonly associated with exposure to foreign particles like sawdust, which can cause discomfort, a scratchy feeling, or a burning sensation in the eyes. Since he is describing a situation involving sawdust, it's reasonable to conclude that the primary issue he is experiencing is irritation caused by the foreign material.

Blurred vision, reddish eyes, and an eye infection could potentially accompany eye irritation but are not the main concerns associated with the immediate effects of having sawdust in the eyes. Blurred vision might occur as a secondary symptom if irritation is severe, reddish eyes could indicate irritation but are not as specific to his complaint, and an infection typically develops over time and would not be the initial response to exposure to sawdust. Therefore, eye irritation directly addresses the immediate response to the incident he reported.