2 sentences for 失明 (shī​míng — blindness)

1. 有什么比失明更不幸的呢？

   yǒu shén​me bǐ shī​míng gèng bù​xìng de ne?

   What greater misfortune is there than to go blind?

   Source: Tatoeba

2. 白内障是导致老年人失明的主要原因之一。

   bái​nèi​zhàng shì dǎo​zhì lǎo​nián​rén shī​míng de zhǔ​yào yuán​yīn zhī yī.

   Cataracts are one of the leading causes of blindness in the elderly.

   Source: Dong Chinese Dictionary