Efficacy of Subtenon's Block With Olive Tipped Cannula

Efficacy of Subtenon Anesthesia With Olive Tipped Cannula: a Randomized Controlled Trial

The purpose of this study is to compare the efficacy of olive tip cannula to the standard Steven's cannula in performing subtenon's anesthesia for patients undergoing cataract surgery.

Inclusion Criteria:

• Patient undergoing cataract extraction procedure under local anesthesia

Exclusion Criteria:

• Patients allergic to local anesthetic solutions.
• Presence local sepsis,
• Previous retinal or strabismus surgery in the same eye.
• Orbital abnormalities
• Previous subtenon's block in the same quadrant.