Table 1.
Gain in ETDRS letters according to patient and ocular characteristics
| Characteristic | No. of eyes | Gain in ETDRS letters after cataract surgery | Interquartile range | p-value |
|---|---|---|---|---|
| Patient characteristics | ||||
| Age (years) | ||||
| ≤ 69 years | 11 | 15.0 | 10.0–20.5 | 0.00275** |
| > 69 years | 9 | 4.00 | 2.00–13.00 | |
| Sex | ||||
| Female | 19 | 10.0 | 2.0–20.0 | < 0.001** |
| Male | 1 | 25.0 | – | |
| Ethnicity | ||||
| White or Caucasian | 18 | 10.5 | 2.5–20.0 | 0.007** |
| Asian | 2 | 17.0 | – | |
| Hypertension | ||||
| Absent | 4 | 12.5 | 8.75–16.25 | 0.804 |
| Present | 16 | 10.5 | 2.0–21.0 | |
| Diabetes mellitus | ||||
| Absent | 11 | 5.0 | 1.0–20.5 | 0.416 |
| Present | 9 | 13.0 | 10.0–20.0 | |
| Ocular characteristics | ||||
| Pre-op BCVA (ETDRS letters) | ||||
| > 57 ETDRS letters | 10 | 5.0 | 2.5–10.8 | 0.361 |
| ≤ 57 ETDRS letters | 10 | 20.0 | 11.2–21.0 | |
| MacTel Disease Stage | ||||
| Stage 3 | 3 | 20.0 | 12.5–23.0 | 0.840 |
| Stage 4 | 15 | 10.0 | 2.0–17.0 | |
| Stage 5 | 2 | 17.5 | – | |
| OCT findings | ||||
| Central foveal EZ break | ||||
| Absent | 7 | 10.0 | 4.5–18.5 | 0.945 |
| Present | 13 | 11.0 | 2.0–20.0 | |
| Pre-op central subfield thickness (μm) | ||||
| ≤ 216 μm | 10 | 15.0 | 2.5–20.8 | 0.950 |
| > 216 μm | 10 | 10.5 | 5.0–14.5 | |
| Cataract grading | ||||
| Nuclear sclerosis | ||||
| Grade 1 | 1 | 5.0 | – | 0.00177** |
| Grade 2 | 13 | 5.0 | 2.0–13.0 | |
| Grade 3 | 6 | 22.5 | 20.2–24.8 | |
| Cortical cataract | ||||
| Grade 0 | 10 | 17.5 | 6.25–20.75 | 0.057 |
| Grade 1 | 2 | 13.0 | – | |
| Grade 2 | 3 | 10.0 | 5.0–17.0 | |
| Grade 3 | 5 | 2.0 | 2.0–11.0 | |
| PSC | ||||
| Grade 0 | 15 | 13.0 | 4.5–20.5 | 0.500 |
| Grade 1 | 3 | 0.0 | −1.0–5.0 | |
| Grade 2 | 2 | 13 | – | |
P value of univariate generalized linear model with generalized estimating equation for each variable is shown
Age, pre-op BCVA and pre-op central subfield thickness were analyzed as continuous variables but categorized into above and below median values for display in this table
*p-value of < 0.05
**p-value of < 0.01