Outer Nuclear Layer as the Main Predictor to Anatomic Response to Half Dose Photodynamic Therapy in Chronic Central Serous Retinopathy
Table 2
Variables at baseline from responders and nonresponders groups.
Variables
Responders
Nonresponders
Best-corrected visual acuity (log MAR)
0.25
0.7
U = 242, z = −1.75,
Central macular thickness (μm)
315.5 (183)
283 (95)
U = 417, z = 1.06,
Outer nuclear layer (μm)
43.5 ± 22.9
23.9 ± 32.2
t(59) = −2.59,
External limiting membrane (present/absent)
41/5
10/5
Ellipsoid zone (present/absent)
30/16 (65.2/34.8%)
5/10 (33.3%/66.7%)
Interdigitation zone (present/absent)
19/27 (41.3%/58.7%)
1/14 (6.7/93.3%)
Choroidal thickness (μm)
304.2 ± 74.1
282.3 ± 47.8
t(59) = −1.08,
Subretinal fluid (μm)
96.5 (201)
61 (89)
U = 384, z = 0.66,
Variables at baseline included in the analysis from responders and nonresponders groups. There was a significant difference between both groups in outer nuclear layer, external limiting membrane, ellipsoid zone, and interdigitation zone. Statistically significant.
