diff --git a/头罩视野slove/头罩视野/Views/PageTest.xaml.cs b/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
index e7ba53f..f0c113b 100644
--- a/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
+++ b/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
@@ -193,11 +193,25 @@ namespace 头罩视野.Views
             bool isBlank = tbTest.Content.ToString() == "空白测试";
 
             // 最终角度（一行逻辑搞定）
-            //double finalAngle = isBlank ?
-            //    (botViAnInt < 45 ? 52 : botViAnInt > 70 ? 68 : botViAnInt) :
-            //    (botViAnInt > 70 ? 68 : botViAnInt);
+            double finalAngle;
 
-            xfsyarea.Text = botViAnInt.ToString("0"); // 下方视野
+            if (isBlank)
+            {
+                // 遮光模式：限制角度范围 52 ~ 68
+                if (botViAnInt < 45)
+                    finalAngle = 52;
+                else if (botViAnInt > 70)
+                    finalAngle = 68;
+                else
+                    finalAngle = botViAnInt;
+            }
+            else
+            {
+                // 正常模式：角度最大不超过 68
+                finalAngle = botViAnInt > 70 ? 68 : botViAnInt;
+            }
+
+            xfsyarea.Text = finalAngle.ToString("0"); // 下方视野
 
             //  计算视野保存率（双目）根据左右目视野不同，算不同的值
 
@@ -241,7 +255,7 @@ namespace 头罩视野.Views
                     zsysaveSum.Text = zongNum1.ToString("0.00");//总视野保存率
                 }
             }
-
+  
             //if (double.TryParse(smsyarea.Text, out double totalAreaForRate))
             //{
             //    double binocularRate = GetArea.CalcVisionRate(totalAreaForRate);