Clinical Study
Corneal Collagen Cross-Linking with and without Epithelial Removal: A Contralateral Study with 0.5% Hypotonic Riboflavin Solution
Table 1
Verbal rating scale for pain after CXL.
| Assigned number | Intensity of the pain | Description of the pain |
| 0 | No pain | No pain or discomfort | 1 | Very little | Mild discomfort (foreign body sensation, dry eye…), no pain | 2 | Little | Mild pain | 3 | Intermediate | Moderate pain, released by closing the eyes or by artificial tears | 4 | Much | Severe pain (relieved by use of oral analgetics) | 5 | Very much | Unbearable pain (must use oral analgetics and local anesthetic drops) |
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