Here are a few description options for the WordPress post tag “乾燥症” (Dry Eye Syndrome) in Traditional Chinese, ranging in length and focus:

**Option 1 (Concise):**

> 了解乾燥症及其成因、症狀及治療方法。

> *Translation: Understanding Dry Eye Syndrome and its causes, symptoms, and treatments.*

**Option 2 (Slightly More Detailed):**

> 乾燥症，又稱為眼睛乾澀症，是現代常見的眼科疾病。 了解乾燥症對眼睛健康的影響，以及如何舒緩不適，改善生活品質。

> *Translation: Dry Eye Syndrome, also known as dry eyes, is a common ophthalmological condition in modern times. Understand the effects of Dry Eye Syndrome on eye health, and how to alleviate discomfort and improve quality of life.*

**Option 3 (Focusing on Solutions):**

> 探索乾燥症的各種治療方案，包括人工淚液、眼藥水，以及生活習慣的調整。 尋找緩解眼睛乾澀、紅腫，重獲舒適視力的秘訣。

> *Translation: Explore various treatment options for Dry Eye Syndrome, including artificial tears, eye drops, and lifestyle adjustments. Find the secrets to alleviate dry, red eyes, and regain comfortable vision.*

**Option 4 (Emphasizing Prevention):**

> 認識乾燥症，並學習如何預防。 了解可能導致眼睛乾澀的因素，以及如何保護眼睛，維持健康清澈的視力。

> *Translation: Understand Dry Eye Syndrome and learn how to prevent it. Learn about factors that can lead to dry eyes and how to protect your eyes to maintain healthy, clear vision.*

**Choosing the Best Option:**

Consider these factors when choosing the best description:

* **Your target audience:** Are they patients, general public, or healthcare professionals?
* **The content of the related posts:** What is the main focus of the articles you are tagging?
* **SEO (Search Engine Optimization):** Include relevant keywords like “乾燥症” (Dry Eye Syndrome), “眼睛乾澀” (dry eyes), “治療” (treatment), “症狀” (symptoms) to improve searchability.

You can always adjust these suggestions based on your specific needs and the content of your blog. Remember to use Traditional Chinese characters!