PROBLEM TO BE SOLVED: To provide an eye drop with blurred vision being suppressed while containing a thickener.SOLUTION: The eye drop of the present invention contains (A) a thickener and (B) at least one kind selected from the group consisting of terpenoid compounds, imidazoline-based vasoconstrictors, neostigmine and salts of the neostigmine, where the amount per drop is 5 to 25 μL. The blurred vision suppression method of the present invention is designed such that the eye drop contains (A) a thickener and (B) at least one kind selected from the group consisting of terpenoid compounds, imidazoline-based vasoconstrictors, neostigmine and salts of the neostigmine and that the amount per drop of the eye drop is 5 to 25 μL.