Anterior Chamber

ROME — Enhanced fluidics and improved ergonomics make phacoemulsification with the Veritas vision system from Johnson & Johnson Vision more efficient and safer in difficult cases, according to one surgeon.

AMELIA ISLAND, Fla. — In this video from Cataract Surgery: Telling It Like It Is, Robert J. Weinstock, MD, discusses a new technique he and Robert H. Osher, MD, developed to place Dexycu in the capsular bag during cataract surgery.

Tube shunts implanted through the ciliary sulcus may reduce corneal endothelial damage over time when compared with anterior chamber tube implantation, according to a study.

Long-term study results of glaucoma implant tube surgery presented at the virtual American Academy of Ophthalmology annual meeting showed posterior tubes were equally effective at lowering intraocular pressure as anterior counterparts and displayed a low rate of erosion.

All corneal perforations should be considered infected to provide better reconstructive outcomes, according to a speaker.

The iris, which imparts the unique color of the human eye, is named after the Greek goddess Iris, meaning rainbow. In the embryology of the eye, iris development starts as early as the fourth week of gestation. The iris develops from both layers of the optic cup. The outer layer of the optic cup forms the pigmented layer of the iris, and the inner layer of the optic cup forms the non-pigmented layer of the iris. Neural crest cells give rise to the muscle layer of the iris. PAX6 is the key gene in eye development. The iris consists of an anterior limiting layer, a stromal layer, an anterior epithelial layer and a posterior pigmented epithelial layer. The anterior surface of the iris is divided into the pupillary zone and the ciliary zone by a zigzag line called the collarette.

All ophthalmologists have seen a hyphema: blood in the anterior chamber, often after significant ocular trauma. In many cases, this blood is just a small amount, and it resolves over the course of days to weeks as aqueous in the anterior chamber turns over. In some situations, however, the hyphema can be so severe that it nearly completely fills the anterior chamber and creates a large clot that does not clear without surgical intervention.

Patients who underwent cataract surgery showed increased anterior chamber depth postoperatively, which correlated with refractive error.

Single-pass four-throw pupilloplasty is a timber hitch type of knot that is self-retaining and self-locking. The technique comprises a single pass with four throws taken around the loop that is withdrawn from the anterior chamber.

CorneaGen has closed $37 million in Series B financing, according to a press release.