Table 2. Comparison of myopic macular retinoschisis with or without posterior staphyloma.
| Non-PS group | PS group | |
|---|---|---|
| Eyes | 4 | 9 |
| Age (years) | 18.0 ± 10.8 | 17.7 ± 1.6 |
| Spherical equivalent errors (D) | −14.91 ± 2.44 | −17.99 ±2.90 |
| Best corrected visual acuity | 0.50 ± 0.55 | 0.41 ± 0.63 |
| Axial length (mm) | 29.53 ± 0.37 | 30.81 ± 1.94 |
| Myopic macular degenerative changes (MDC) | ||
| Category 0 | 0 | 0 |
| Category 1 | 3 | 1 |
| Category 2 | 1 | 8 |
| Category 3 | 0 | 0 |
| Category 4 | 0 | 0 |
PS: posterior staphyloma.
aPosterior staphyloma was defined as a circumscribed or diffuse protrusion of the posterior sclera appeared in both indirect ophthalmoscopy and B-type ultrasonography.
bMDC classification: Category 0, normal-appearing fundus; Category 1: tessellated fundus; Category 2: diffuse chorioretinal atrophy; Category 3: patchy chorioretinal atrophy; Category 4: macular atrophy.