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Dropless Pars Plana Vitrectomy Using Intravitreal Decanted Triamcinolone and Moxifloxacin: Safety and Efficacy
Amr Lotfy Ali1,2, Daniel Vail1,2, Mohamed Sherif Morsy1,2,3
1Jacobs Retina Center, Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA.
Retina (Philadelphia, Pa.)
|July 30, 2026
Summary
A dropless intravitreal injection of triamcinolone acetonide and moxifloxacin after pars plana vitrectomy (PPV) is safe and effective. This approach reduced inflammation and cystoid macular edema, improving visual acuity compared to topical eye drops.
Area of Science:
- Ophthalmology
- Retina Surgery
- Pharmacology
Background:
- Pars plana vitrectomy (PPV) is a common surgical procedure.
- Postoperative inflammation and complications like cystoid macular edema (CME) can affect visual outcomes.
- Standard postoperative care involves topical anti-inflammatory eye drops.
Purpose of the Study:
- To compare a dropless intravitreal regimen of triamcinolone acetonide and moxifloxacin with standard topical therapy after PPV.
- To evaluate the safety and efficacy of this dropless approach.
Main Methods:
- Retrospective study of patients undergoing PPV.
- Dropless cohort received intravitreal triamcinolone and moxifloxacin.
- Control cohort received topical moxifloxacin and prednisolone acetate.
- Outcomes assessed: intraocular inflammation, IOP, CST, CME, and BCVA.
Main Results:
- The dropless group showed significantly less anterior chamber inflammation and lower central subfield thickness (CST) at multiple time points.
- Reduced incidence of cystoid macular edema (CME) and greater improvement in best-corrected visual acuity (BCVA) were observed in the dropless group.
- Intraocular pressure (IOP) was similar, and no endophthalmitis occurred. Findings were consistent for epiretinal membrane (ERM) subgroup.
Conclusions:
- A dropless intravitreal regimen is a safe and effective alternative to topical therapy post-PPV.
- This approach leads to reduced postoperative inflammation and CME.
- Improved visual outcomes are associated with the dropless intravitreal regimen.