Here are a few options for a WordPress post_tag description (“視覺系統” – Visual System) in Traditional Chinese, varying in length and focus:

**Option 1 (Concise & General):**

> 解釋有關人類視覺系統的知識，包括眼睛結構、視覺處理過程和視覺障礙。
>
> *Translation: Explains knowledge about the human visual system, including eye structure, visual processing, and visual impairments.*

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

> 探索視覺的奧秘，深入了解眼睛的構造、大腦如何處理視覺信息以及常見的視覺疾病。提供相關術語和研究資訊。
>
> *Translation: Explore the mysteries of vision, delve into the structure of the eye, how the brain processes visual information, and common visual diseases. Provides relevant terminology and research information.*

**Option 3 (Focus on Educational Content):**

> 提供關於視覺系統的教育內容，涵蓋眼睛的解剖學、生理學、常見疾病和視覺健康維護。適合學生、醫學從業者和對生物學感興趣的人。
>
> *Translation: Provides educational content on the visual system, covering the anatomy, physiology, common diseases, and visual health maintenance of the eye. Suitable for students, medical professionals, and those interested in biology.*

**Option 4 (Focusing on potential applications of related technology):**

> 探討視覺系統的科學，及其與人工智慧、機器視覺和增强現實等技術的關聯。涉及眼睛的結構、視覺感知的機制，以及這些知識在創新應用中的應用。
>
> *Translation: Explore the science of visual systems and its connection to technologies such as artificial intelligence, machine vision, and augmented reality. It addresses the structure of the eye, the mechanisms of visual perception, and the application of this knowledge in innovative applications.*

**Recommendations:**

* **Consider your target audience:** Who is this tag for? Are they general readers, or are they more technically inclined?
* **Keep it relevant:** Does the description accurately reflect the content tagged with “視覺系統”?
* **Keep it relatively concise:** WordPress tag descriptions are meant to be brief summaries.

To choose the best option, consider where you are using this tag *and* precisely what content will be tagged with “視覺系統”. The goal is to make the description informative and helpful for users.