Here are a few options for a WordPress post_tag description for “乾眼症” in Traditional Chinese, depending on the desired level of detail and target audience:

**Option 1: Concise & Direct**

* **Description:** 乾眼症相關資訊，包括成因、症狀、治療方法和預防措施。 (Dry eye disease related information, including causes, symptoms, treatments, and preventative measures.)

**Option 2: Slightly More Informative**

* **Description:** 了解乾眼症：探索乾眼症的成因、常見症狀、以及不同程度的治療選擇。 提供實用的健康建議，以舒緩不適並改善眼部健康。 (Learn about dry eye disease: Explore the causes, common symptoms, and treatment options for different levels of severity. Provides practical health advice to alleviate discomfort and improve eye health.)

**Option 3: For a More General Audience**

* **Description:** 眼睛乾澀、發癢、不適？ 本標籤提供關於乾眼症的資訊，幫助您認識此常見眼疾，了解其症狀、可能的原因，以及如何與眼科醫生合作尋求有效的治療方案。 (Dry eyes, itchy eyes, discomfort? This tag provides information about dry eye disease, helping you understand this common eye condition, its symptoms, likely causes, and how to work with an ophthalmologist to seek effective treatment options.)

**Option 4: Focusing on Symptoms**

* **Description:** 乾眼症標籤，包含有關乾眼症的各種症狀、診斷和治療方式。 查找關於眼部乾澀、發癢、灼熱、視力模糊等症狀的實用資訊。 (Dry eye disease tag, including various symptoms, diagnosis and treatment methods for dry eye. Find practical information on symptoms such as dry eyes, itching, burning, and blurred vision.)

**How to choose the best description:**

* **Target Audience:** Who are you writing for? Patients, general public, or eye care professionals? Tailor the language accordingly.
* **Post Content:** Does your blog post focus on specific aspects (e.g., causes, treatments, lifestyle tips)? Make the description relevant.
* **Keywords:** While not the primary purpose, consider subtly including secondary keywords (e.g., 眼睛乾澀, 眼部健康) that people might search for.
* **Word Count:** WordPress doesn’t have a character limit for these, but keeping it concise is generally better for readability.

**To input this on your WordPress Site:**

1. **Go to your WordPress Admin Dashboard.**
2. **Navigate to the “Tags” section (under “Posts” -> “Tags”).**
3. **Find the “乾眼症” tag (or create it if it doesn’t exist).**
4. **In the “Description” field, paste the description you’ve chosen.**
5. **Save the tag.**

Now, when you use the tag “乾眼症” on your blog posts, the description will be visible on the tag archive page (and in some themes, under the individual tag name, depending the theme’s settings).