Retina     Choroid  
  before PRP after PRP p value before PRP after PRP p value
Thickness            
  center 1mm circle 279.84 ±26.62 308.06±50.75 <0.001 298.43±43.67 302.57±43.11 0.120
  inner 1-3mm circle            
    Average 348.27±21.25 369.06±31.94 <0.001 297.27±40.06 300.61±41.53 0.067
    Sup 350.24±26.49 371.82±39.03 <0.001 302.88±40.73 307.69±42.93 0.107
    Nasal 351.51±22.59 367.71±29.94 <0.001 282.37±42.33 284.59±42.80 0.338
Inf 346.16±21.44 361.53±25.03 <0.001 307.22±48.58 309.76±50.98 0.367
    Temp 345.16±23.20 375.18±48.84 <0.001 296.59±39.58 300.39±40.65 0.055
  outer 3-6mm circle            
Avg 321.09±24.67 338.84±29.38 <0.001 285.99±40.36 286.87±42.68 0.602
    Sup 327.02±29.68 344.98±34.55 <0.001 312.69±45.07 313.82±46.88 0.705
    Nasal 331.86±23.50 346.33±27.00 <0.001 241.35±44.13 243.49±45.47 0.255
Inf 306.24±27.94 321.78±30.47 <0.001 308.35±52.77 308.45±54.01 0.971
    Temp 319.24±30.04 342.27±43.54 <0.001 281.57±37.47 281.71±40.49 0.949
Volume            
  total 9.19±0.63 9.72±0.82 <0.001 8.12±1.10 8.16±1.17 0.353
  center 1mm circle 0.22±0.02 0.24±0.04 <0.001 0.23±0.03 0.24±0.03 0.182
  inner 1-3mm circle            
    Average 2.19±0.13 2.31±0.20 <0.001 1.87±0.25 1.89±0.26 0.078
    Sup 0.55±0.04 0.58±0.06 <0.001 0.48±0.06 0.48±0.07 0.098
    Nasal 0.55±0.04 0.58±0.05 <0.001 0.44±0.07 0.45±0.07 0.429
Inf 0.54±0.03 0.57±0.04 <0.001 0.49±0.08 0.49±0.08 0.395
    Temp 0.54±0.04 0.59±0.08 <0.001 0.47±0.06 0.47±0.06 0.079
  outer 3-6mm circle            
Avg 6.78±0.51 7.16±0.62 <0.001 6.02±0.85 6.03±0.90 0.674
    Sup 1.72±0.15 1.82±0.18 <0.001 1.64±0.23 1.64±0.24 0.855
    Nasal 1.76±0.13 1.83±0.14 <0.001 1.28±0.24 1.29±0.24 0.294
Inf 1.61±0.15 1.69±0.16 <0.001 1.61±0.27 1.61±0.28 0.922
    Temp 1.69±0.16 1.81±0.23 <0.001 1.49±0.20 1.49±0.21 0.823
PRP: Panretinal Photocoagulation
Table 2: Changes in macular thickness and volume after panretinal photocoagulation.