6. A second sclerotomy made with a 30-gauge thin wall needle at 180° from the first sclerotomy. 7. Insertion of the trailing haptic into the lumen of the second needle while the first needle was ...

As they only need to go into the layer of fat and not muscle, the needles are not too long. They are typically available in sizes ranging from 4 millimeters (mm) to 12.7 mm. The gauge of a needle ...

What started out as one-quarter inch outside diameter would be reduced to 0.014 of an inch for a 28-gauge needle commonly used for insulin injections. In this case, the starting tube diameter is ...

Different types of catheters can be used to perform needle aspiration, and you should be familiar with the specific devices available at your institution. The procedure requires a 16-gauge or 18 ...