In-Office Procedures · Treatment

Punctal Plugs: Tear Conservation

Punctal occlusion conserves the patient's own tears in aqueous-deficient dry eye. The Dry Eye Rescue platform carries a complete line, silicone, absorbable collagen, intracanalicular, and sizing instruments.

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Written by the Dry Eye Rescue clinical team | Medically reviewed by the DER Medical Advisory Panel | Last updated June 2026

Key points

  • We stock a complete line of plugs, inserts, and sizing tools.
  • Occlusion conserves the patient's own tears in aqueous-deficient dry eye.
  • Dissolvable collagen plugs suit a trial; silicone plugs last longer.
  • Best placed once surface inflammation is controlled.

What they do

Punctal plugs are small biocompatible devices inserted into one or both lacrimal puncta (the drain openings at the inner corner of the eyelids) to reduce or eliminate tear drainage. By slowing the outflow of the patient's own tears, plugs increase the volume and contact time of the natural tear film on the ocular surface, improving lubrication, surface health, and symptom relief without adding any pharmacologic agent.

Punctal occlusion is indicated primarily for aqueous-deficient dry eye, including Sjögren's-related dry eye, post-refractive surgery dry eye, and cases where lubricating drops alone fail to provide adequate relief. It also extends the effectiveness of prescription topical medications by keeping them on the surface longer.

Plug types available

  • Silicone punctal plugs, the standard, longest-lasting option; removable; available in multiple sizes
  • Absorbable collagen plugs, temporary plugs that dissolve over days to weeks; useful for trialing occlusion before committing to permanent silicone, and for post-surgical dry eye
  • Intracanalicular plugs, inserted deeper into the canaliculus rather than sitting at the surface punctum; lower extrusion rate; less visible to the patient
  • Punctal sizing instruments, stainless steel dilators and gauge sets to ensure accurate plug sizing before insertion

Clinical evidence

  • 2025 meta-analysis, Contact Lens and Anterior Eye (17 studies), Punctal plugs significantly improved TBUT (mean difference +1.8 sec), tear production on Schirmer (+3.1 mm), and OSDI (mean difference to 20.6 points) with a pooled 86% plug retention rate and low spontaneous loss rate. Authors concluded plugs are "effective and safe" for moderate to severe dry eye disease. AJMC, meta-analysis summary
  • Knapp et al. (1989, Ophthalmology), Foundational clinical study: 61% of aqueous-deficient dry eye patients showed subjective improvement with silicone punctal plugs; 75% decrease in rose bengal staining and significant reduction in tear osmolarity. PubMed
  • Frontiers in Medicine (2022), Prospective study showing statistically significant improvement in SPEED, OSDI, tear meniscus height, NIKBUT, and corneal staining after punctal plug insertion in both Sjögren's and non-Sjögren's aqueous-deficient dry eye at 2 and 6 months (all p<0.05). Frontiers in Medicine
  • PMC comprehensive plug review, Journal of Ophthalmology (2016), 86% of patients were symptom-free at 6-month follow-up; 76% stopped lubricating drops after silicone punctal plug insertion. PMC, Journal of Ophthalmology
  • TFOS DEWS III (2025), Punctal plugging recognized as part of the tear conservation strategy within the dry eye management framework, particularly for aqueous-deficient subtypes. American Journal of Ophthalmology

Patient selection guidance

Best candidates for punctal occlusion:

  • Aqueous-deficient dry eye not adequately controlled with lubricating drops (Schirmer ≤5 to 10 mm)
  • Patients seeking to reduce drop frequency or eliminate dependence on artificial tears
  • Post-LASIK, post-PRK, or other post-refractive surgery dry eye
  • Sjögren's syndrome-related dry eye (aqueous-deficient subtype)
  • Contact lens wearers with insufficient tear volume for comfortable wear

Important: punctal occlusion should generally be deferred until active ocular surface inflammation is controlled, inserting plugs into an inflamed eye can trap inflammatory mediators on the surface. Obtain osmolarity and MMP-9 baselines first.

Availability on Dry Eye Rescue

Dry Eye Rescue carries a deep line of punctal plugs: silicone punctal plugs in multiple sizes, absorbable collagen plugs, intracanalicular plug options, and sizing dilator sets. Browse the punctal plug collection or contact Provider Relations for bulk pricing.

Sources are linked inline above. Device descriptions reference FDA clearance status, published peer-reviewed studies, and manufacturer data. Clinical outcomes are not a guarantee of individual results. Review full prescribing information, the IFU, and FDA clearance documentation for each device before use.

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