聚乙烯醇
眼科潤滑劑 / 人工淚液
聚乙烯醇是一種合成的水性人工淚液,用於潤滑乾眼。在**乾眼症 (KCS)** 的病例中,它能改善眼表潤滑、淚液滯留並提高病患舒適度,同時等待淚液刺激療法(如局部環孢素)發揮作用。 > **臨床提示:** 它比羥丙甲纖維素 (hypromellose) 更具附著力且黏度較低。然而,由於需要頻繁點眼(通常每小時一次),飼主依從性可能較差。如果無法頻繁給藥,請考慮使用長效型人工淚液(如交聯玻尿酸或卡波姆凝膠)。
作用機制: Acts as a **lacromimetic** (tear substitute). It mimics the **aqueous layer** of the trilaminar tear film, providing physical lubrication and moisture to the corneal and conjunctival surfaces.
各物種劑量
Dogs
- Keratoconjunctivitis sicca (KCS) / Dry eye lubrication · 1 drop per eye · topical · q1h · As needed · Patient compliance is poor if administered >q4h; consider using a longer acting tear replacement.
Cats
- Dry eye lubrication · 1 drop per eye · topical · q1h · As needed · Patient compliance is poor if administered >q4h; consider using a longer acting tear replacement.
劑量為合格獸醫專業人員的臨床參考。請務必對照最新藥品仿單及個別病患確認。
給藥途徑
Topical (Ophthalmic)
監測
- Clinical signs of dry eye (corneal health, conjunctival hyperemia, comfort)
- Schirmer tear test (STT) to monitor underlying KCS progression
過量
No specific information available. Overdose via topical ophthalmic administration is highly unlikely to cause systemic toxicity. Excess fluid will simply drain from the eye.
VetSheet 藥物參考供持牌獸醫專業人員作臨床決策輔助之用,不能取代專業判斷或廠方最新藥品說明書。