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Table 5 Patient questionnaire responses regarding factors contributing to early bottle exhaustion

From: Prevalence of self-reported early glaucoma eye drop bottle exhaustion and associated risk factors: a patient survey

Patient-reported reason for early bottle exhaustion N (%)
More than one drop comes out 27 (30.6)
Insufficient amount in bottle 16 (18.1)
Drop size too large/inconsistent 16 (18.1)
Can’t see tip of bottle 10 (11.4)
Can’t hold bottle steady 8 (9.1)
Misses eye 4 (4.5)
Not sure why 3 (3.4)
Poor vision 2 (2.3)
Can’t see if bottle empty 2 (2.3)