Equivalent tamponade by room air as compared with SF(6) after macular hole surgery.

Background: To evaluate the effect of tamponade by room air after vitrectomy for the treatment of idiopathic macular hole (MH).

Methods: There were 156 eyes of 151 patients studied. The patients' ages ranged from 35 to 88 years old (mean: 65.

Anatomical findings of vitreoretinal interface in eyes with asteroid hyalosis.

Purpose: To investigate the anatomical features of vitreoretinal interface in eyes with asteroid hyalosis (AH) with optical coherence tomography (OCT) and intravitreal triamcinolone acetonide (TA) during vitreous surgery.

Methods: This study was an interventional clinical case series. Records relating to ten eyes from ten patients who underwent a TA-assisted vitrectomy for the treatment of diverse vitreoretinal diseases complicated with AH.

Prostaglandin F2alpha, but not latanoprost, increases the Ca2+ sensitivity of the pig iris sphincter muscle.

Purpose: To determine the mechanisms underlying prostaglandin (PG) F(2)alpha-(,) carbachol (CCh)-, or latanoprost (a PGF(2)alpha analogue)-induced contraction of the pig iris sphincter muscle.

Methods: Effects of these agents on myofilament Ca(2+) sensitivity were evaluated and compared with the use of receptor-coupled permeabilized preparations by alpha-toxin. The effects of PGF(2)alpha and CCh on the phosphorylation of myosin light chain (MLC) were also analyzed.