Punctal plugs provided symptomatic improvement and clinical outcomes also improved from baseline measurements.
封闭泪点改善了症状，也使临床指标较基线测量值进步。
2
Punctal plugs insertion is an effective and reversible method to treat dry eye syndrome and some other ocular surface diseases.
泪小点栓植入术被认为是治疗干眼症和其他眼表疾病的有效而可逆的方法。
3
Punctal occlusion is a mechanical treatment in which the tear drainage system is blocked in order to aid in the preservation of natural tears on the ocular surface.