Pilot study of a glue-less, suture-less amniotic membrane for pterygium excision.

Purpose: Pterygium is a non-cancerous, fibrovascular growth of the bulbar conjunctiva that can cause visual disturbance, ocular pain, and cosmetic concerns. Surgical management is required in certain cases, which consists of excising the pterygium and associated Tenon's, then overlaying the bare sclera with an autograft or amniotic membrane using glue or sutures. The purpose of this study is to assess outcomes of pterygium repair using a newly developed self-adhesive amniotic membrane that does not require glue or sutures for fixation.

A Rare Presentation of Direct Traumatic Optic Neuropathy in a Patient Poked in the Eye by an Antenna.

Traumatic optic neuropathy (TON) is defined as a loss of vision due to a traumatic injury to the optic nerve. Numerous mechanisms may contribute to the development of TON; however, most cases involve injuries to the globe, orbit, or adnexa. This case report presents a 24-year-old male who was inadvertently poked in the eye with an antenna and developed a direct optic nerve injury in the absence of a significant injury to the surrounding orbital structures.

Traumatic central retinal vein occlusion following a hawk attack to the posterior cranium.

Purpose: We describe a patient who developed a central retinal vein oculsion following a diving hawk attack to her posterior cranium.

Observations: A 50-year-old female presented with decreased visual acuity and color perception in the left eye following a diving hawk attack to her right-posterior parietal cranium. Medical history was significant for well-controlled type 2 diabetes, hyperlipidemia, and obesity.

Kinetics of CO and CO with N and O atoms.

We have measured reaction rate constants for CO and CO reacting with N and O atoms using a selected ion flow tube apparatus equipped with a microwave discharge atom source. Experimental work was supplemented by molecular structure calculations. Calculated pathways show the sensitivity of kinetic barriers to theoretical methods and imply that high-level ab initio methods are required for accurate energetics.