High intraocular pressure in four vitrectomized eyes with intravitreal C3F8 without high altitude travel.

Importance: It is well known that altitude ascent with intravitreal gas can cause expansion of gas and intraocular pressure (IOP) elevation. According to Boyle's law, the gas bubble will not expand unless a higher altitude than the gas insertion site has been reached. We report four cases in which intravitreal gas was injected at an altitude of 790 m (Jerusalem).

Neonatal mydriasis: intravenous lidocaine adverse reaction.

Lidocaine (a sodium channel blocker) serves as an antiepilepsy drug in neonates. We present a neonate with a seizure disorder who acutely developed pupillary mydriasis secondary to lidocaine overdose. We suggest adding this side effect to the list of untoward effects of lidocaine and to the differential diagnosis of fixed dilated pupils in neonates treated with lidocaine.

The effect of normal childbirth on eyes with abnormalities predisposing to rhegmatogenous retinal detachment.

Background: Pregnant women who have high myopia, a history of retinal detachment or retinal holes, or have known lattice degeneration are frequently referred to an ophthalmologist for advice concerning the management of pregnancy and labor, i.e. whether a spontaneous vaginal delivery can be allowed and whether prophylaxis for high-risk retinal pathology is indicated.

Civil unrest and ocular trauma.

The incidence and causes of ocular trauma among Israeli troops serving in the West Bank and Gaza between 1987 and 1989 was investigated. Of the 985 soldiers who were reported injured, 11.3% (111) were reported to have suffered from injuries to the eye.