MIGS has no lasting effect on anterior segment parameters

Implantation of the Ex-PRESS miniature device has been found to have no lasting effects on anterior segment parameters, according to recently published data in the Journal of Glaucoma.

The study led by Dr Na’ama Hammel (Department of Ophthalmology, Rabin Medical Center, Petah-Tiqva, Israel) analysed 19 eyes of 19 patients to evaluate if the Ex-PRESS miniature glaucoma implant surgery would affect corneal curvature and anterior segment parameters.

The team used the Pentacam rotating Scheimpflug camera (Oculus Inc.) to analyse the eyes preoperatively and then at 1 day, 1 week, 1 month and 3 months postoperatively to determine if there were any changes in parameters. Measurements were taken of the anterior and posterior corneal curvature, anterior and posterior corneal astigmatism, anterior chamber depth (ACD), anterior chamber volume (ACV) and anterior chamber angle before and after surgery.

One day after surgery and at 3 months post-op, the intraocular pressure (IOP) was found to reduce to a statistically significant level. The anterior corneal astigmatism and posterior corneal astigmatism increased, and the ACD and ACV both decreased on the first post-op day. However, at 3 months post-op these changes in anterior segment parameters were not found to be statistically significant.

For more detailed information please view the abstract here.