Clinical Report: Phacoemulsification at Physiologic IOP: Benefits and Limitations

Overview

Performing cataract surgery at physiologic intraocular pressure (IOP) may enhance patient outcomes by reducing postoperative complications. Advancements in phacoemulsification techniques allow for safer and more efficient surgeries at lower IOP levels.

Background

Cataracts are a leading cause of vision impairment, affecting millions in the U.S. annually. Traditionally, cataract surgery has been performed at elevated IOP levels to maintain chamber stability, but this practice is associated with various postoperative complications. Recent trends suggest that operating at physiologic IOP may improve surgical safety and patient recovery.

Data Highlights

No specific numerical data provided in the article.

Key Findings

• High IOP during cataract surgery is linked to complications such as corneal edema and persistent inflammation.
• Operating at physiologic IOP can enhance chamber stability and reduce the risk of lens subluxation.
• Recent advancements in phacoemulsification technology allow for effective surgery at lower IOP levels.
• Lower IOP settings improve endothelial cell protection and reduce postoperative inflammation.
• Physiologic IOP may decrease procedural discomfort in certain patient populations.

Clinical Implications

Surgeons should consider utilizing physiologic IOP settings during cataract surgery to minimize complications and enhance patient safety. Understanding the advancements in fluidic systems can help optimize surgical outcomes, particularly in patients with compromised optic nerves.

Conclusion

Adopting physiologic IOP during cataract surgery presents significant benefits in terms of patient safety and surgical efficiency, although careful consideration of individual patient anatomy and needs remains essential.

References

1. Glaucoma Physician, Lower IOP in Cataract Surgery, 2025 -- Lower IOP in Cataract Surgery
2. Glaucoma Physician, Laser Cataract Surgery in the Glaucoma Patient, 2017 -- Laser Cataract Surgery in the Glaucoma Patient
3. Glaucoma Physician, Managing Long or Short Axial Length in Cataract Surgery, 2026 -- Managing Long or Short Axial Length in Cataract Surgery
4. Ophthalmology Management, The Holy Grail of Cataract Surgery, 2025 -- The Holy Grail of Cataract Surgery
5. Cataract in the Adult Eye Preferred Practice Pattern® - ScienceDirect, 2021 -- Cataract in the Adult Eye Preferred Practice Pattern®
6. PubMed, Phacoemulsification using an active fluidics system at physiologic vs high intraocular pressure, 2023 -- Phacoemulsification using an active fluidics system at physiologic vs high intraocular pressure
7. Cataract in the Adult Eye Preferred Practice Pattern® - ScienceDirect
8. Phacoemulsification using an active fluidics system at physiologic vs high intraocular pressure: impact on anterior and posterior segment physiology - PubMed
9. Does standalone phacoemulsification lower intraocular pressure in glaucomatous eyes? A systematic review and meta-analysis | Eye