Table 3.
Corneal Staining Criteria and Characteristics of 1047 Subject Visits in the LASH Cohort
| At Least Mild Stain |
At Least Moderate Stain |
|||||
|---|---|---|---|---|---|---|
| Zones (n) | Surface Area | Density | Zones (n) | Surface Area | Density | |
| Micropunctate | ||||||
| >1 | ≥1 | ≥1 | 5 | ≥1 | ≥1 | |
| ≥1 | >2 | ≥1 | >1 | 4 | ≥1 | |
| ≥1 | ≥1 | >1 | >1 | 1 | 4 | |
| >2 | >2 | ≥1 | ||||
| >1 | >2 | >2 | ||||
| Frequency of subject visits | 41.7% | 8.0% | ||||
| Macropunctate | ||||||
| ≥1 | ≥1 | ≥1 | 5 | ≥1 | ≥1 | |
| >1 | ≥1 | 4 | ||||
| ≥1 | 4 | ≥1 | ||||
| >1 | >2 | ≥1 | ||||
| Frequency of subject visits | 11.5% | 1.9% | ||||
| Coalescent Macropunctate | ||||||
| ≥1 | ≥1 | ≥1 | >1 | ≥1 | ≥1 | |
| Frequency of subject visits | 8.5% | 1.4% | ||||
| Patch | ||||||
| ≥1 | ≥1 | ≥1 | ≥1 | ≥1 | ≥1 | |
| Frequency of subject visits | 1.5% | |||||
| Overall Stain | ||||||
| Any of the above criteria | Any of the above criteria | |||||
| Frequency of subject visits | 51.2% | 17.7% | ||||
* Through 4 months (768 subject visits), 55.6% of visits had at lest mild staining and 19.8% had at least moderate staining documented.