Conditions: Cataracts
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 40
Healthy volunteers: yes

Brief summary:
The purpose of this study is to determine if there is a difference on the penetration of betadine 5% when using lidocaine 2% jelly versus topical tetracaine 0.5% in topical cataract surgery. This will be assessed comparing bacterial colony count and species by taking swabs from the eye surface before and after the topical anesthesia has been administered.

Detailed description:
The purpose of this research study is to show that using Lidocaine2% jelly before surgery as an anesthetic (keep you from feeling touch or pain) for cataract surgery does not block the antiseptic (cleans and kills germs) effect of Betadine5%.

Arms:
arm 1: Tetracaine 0.5% drop of betadine will be used on the operative eye after Tetracaine has been administered arm 2: Lidocaine 2% Jelly drop of betadine will be used on the operative eye after Lidocaine 2% Jelly has been administered

Interventions: intervention 1: tetracaine 0.5% intervention 2: Lidocaine 2% Jelly
Intervention descriptions: intervention 1: betadine 5% intervention 2: Betadine 5%

Protocol document: