It occurs more often in multiple pregnancies than in singleton pregnancies. It also tends to occur earlier and is more severe in multiple pregnancies. Preeclampsia can damage many organs in your body, most commonly your kidneys, liver, brain, and eyes. Preeclampsia that worsens and causes seizures is called eclampsia.
Background Laser peripheral iridotomy (LPI) is the preferred procedure for treating angle-closure glaucoma caused by relative or absolute pupillary block. LPI eliminates pupillary block by allowing the aqueous to pass directly from the posterior chamber into the anterior chamber, bypassing the pupil.
Peripheral Iridotomy - Technique. 1  Before laser peripheral iridotomy (LPI) is performed, intraocular pressure (IOP) and anterior segment inflammation must be controlled. Generally, LPI can be performed with the neodymium:yttrium-aluminum-garnet (Nd:YAG) laser alone. In cases of dark irides, a combination of the argon laser and the Nd:YAG laser works well.