Exposure of the Globe
After the anesthesia has been administered and the eye has been prepared and draped in sterile fashion (see the section Antimicrobial Therapy in Chapter 7 and Fig 7-6), the eyelids are held apart with an eyelid speculum. When selecting the speculum, it is important to ensure that it will accommodate the phaco handpiece and other instruments (Fig 8-6).
The surgeon may choose to be seated superiorly or temporally. This preference may be dictated by the prominence of the patient’s brow, the presence of a large pterygium or filtering bleb, or patient history of ocular surgery. Another factor to consider is the axis of astigmatism, with mild flattening induced at the site of a clear corneal wound.
Excerpted from BCSC 2020-2021 series: Section 11 - Lens and Cataract. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.