Clinical Study
Epi-Off versus Epi-On Corneal Collagen Cross-Linking in Keratoconus Patients: A Comparative Study through 2-Year Follow-Up
Table 4
Ocular Surface Disease Index (OSDI©).
| | | All of the time | Most of the time | Half of the time | Some of the time | None of the time |
| | Have you experienced any of the following during the last week: | | (1) Eyes that are sensitive to light? | 4 | 3 | 2 | 1 | 0 | | (2) Eyes that feel gritty? | 4 | 3 | 2 | 1 | 0 | | (3) Painful or sore eyes? | 4 | 3 | 2 | 1 | 0 | | (4) Blurred vision? | 4 | 3 | 2 | 1 | 0 | | (5) Poor vision? | 4 | 3 | 2 | 1 | 0 | | | Subtotal | Score | | | A |
| | Have problems with your eyes limited you in performing any of the following during the last week: | | (6) Reading | 4 | 3 | 2 | 1 | 0 | | (7) Driving at night? | 4 | 3 | 2 | 1 | 0 | | (8) Working with a computer or bank machine (ATM)? | 4 | 3 | 2 | 1 | 0 | | (9) Watching TV? | 4 | 3 | 2 | 1 | 0 | | | Subtotal | Score | | | B |
| | Have your eyes felt uncomfortable in any of the following situations during the last week: | | (10) Windy conditions? | 4 | 3 | 2 | 1 | 0 | | (11) Places or areas with low humidity (very dry)? | 4 | 3 | 2 | 1 | 0 | | (12) Areas that are air conditioned? | 4 | 3 | 2 | 1 | 0 | | | Subtotal | Score | | | C |
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Add subtotals A, B, and C to obtain the result.
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