Table 1 Gain in ETDRS letters according to patient and ocular characteristics
From: Visual acuity after cataract surgery in Macular Telangiectasia Type 2 Stage 3 to 5
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 | – | |