《汉书·传·外戚传上》
窦皇后后来生了病，双目失明。
窦皇后疾，失明。
Empress Dou later fell ill and lost her sight.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 窦皇后疾，失明。 [/INST] Empress Dou later fell ill and lost her sight.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 窦皇后疾，失明。
user
Empress Dou later fell ill and lost her sight.
assistant