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Table 1 Visual analogue scale for pain and surgeon’s comfort

From: A comparison between topical and retrobulbar anesthesia in 27-gauge vitrectomy for vitreous floaters: a randomized controlled trial

Score

Pain

Surgeon’s comfort

0

No discomfort

Extremely comfortable

1

Mild discomfort

Mild movements/squeezing

2

Mild pain

Moderate discomfort (significant ocular movements/squeezing/Bells phenomenon)

3

Moderate pain

Severe discomfort hampering surgical maneuvering

4

Unbearable pain

Unable to perform surgery