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A Research Study to Evaluate the Effects of Repeated Intravitreal Injections on Bacteria Around the Eye

Bacterial Resistance and Alterations in Conjunctival Flora Following Serial Intravitreal Injections

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01531842
Enrollment
30
Registered
2012-02-13
Start date
2011-08-31
Completion date
2013-08-31
Last updated
2012-02-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Age-related Macular Degeneration, Branch Retinal Vein Occlusion, Central Retinal Vein Occlusion, Choroidal Neovascularization

Keywords

Conjunctival bacterial flora, prophylactic topical antibiotic, injection, intravitreal injection, bacterial resistance, serial injection, serial intravitreal injections, CNV, CRVO, AMD, BRVO

Brief summary

This is a research study to evaluate the effects of repeated intravitreal injections on bacteria around the eye.

Detailed description

The primary objective of this study is to determine whether conjunctival bacterial flora are altered and/or demonstrate increasing antibiotic resistance after serial intravitreal injections when a prophylactic topical antibiotic is used pre- and post-injection compared to when they are not used.

Interventions

PROCEDUREConj flora Antibiotic resistance

Patients will either receive a drop of topical antibiotic before and after the intravitral injection or no topical antibiotics (only typical prep with betadine).

Sponsors

Mid Atlantic Retina
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

Subjects will be eligible if the following criteria are met: * Ability to provide written informed consent and comply with study assessments for the full duration of the study. * Have been diagnosed with neovascular AMD, CRVO or BRVO. * Have been determined by the investigator to require intravitreal injections of bevacizumab or ranibizumab.

Exclusion criteria

Subjects meeting any of the following criteria are ineligible for study entry: * Prior intraocular injection in either eye. * Chronic use of opthalmic medication. * Contact lens wear. * Ocular surgery within the past 6 months. * Use of ophthalmic medications in either eye or ocular infection within the past 6 months. * Use of systemic antibiotics within 6 months. * Known allergy or contraindication to povidone iodine or fluoroquinolones.

Design outcomes

Primary

MeasureTime frameDescription
Determine if conj bacterial flora demonstrates increased antibiotic resistance if topical antibiotic used pre and post injection vs not used.Prior to each of your eye injections for the first 4 injections and continue through the completion of your fourth injection, an anticipated maximum of 6 months.Evaluating the effects of repeated use of iodine drops with or without antibiotic eye drops on bacteria on the eye surface in patients undergoing injections in the eye to determine if conjunctival bacterial floar are altered or demonstate increasing antibiotic resistance.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026