[Radial optic neurotomy for ischemic central retinal vein occlusion].

Introduction: Occlusion of the central retinal vein (CRVO) is the second most frequent cause for blindness in the course of pathological changes of the vascular system. Vitreous haemorrhages and neovascular glaucoma are known as serious complications. Clinically accepted guidelines for treating CRVO do not exist up to now.

[Long-term results after pars plana vitrectomy with 25 gauge technique].

Background: The 25-gauge technique of pars plana vitrectomy appears to be a very suitable method, especially for patients with pathological epiretinal alterations of the macula. However, the procedure has been criticized for insufficient impermeability with an increased risk of endophthalmitis and that the flexibility of instruments is too high.

Method: Between 2002 and 2006, 625 eyes from 620 patients were operated on using the 25-gauge technique.

Macular pigment in the human retina: histological evaluation of localization and distribution.

Purpose: Clinical investigations have demonstrated variation in both the peak optical density and the spatial distribution of macular pigment. To confirm these impressions histologically, the present study examined the distribution of macular pigment in the human retina.

Materials And Methods: The macular retina of 11 donor eyes of different ages (28-91 years) were examined histologically on 100 microm vibratome sections directly, without further staining.

[Intraocular application of bevacizumab for the treatment of choroidal neovascularization secondary to angioid streaks].

Angioid streaks are the typical ophthalmological manifestation of the systemic disease pseudoxanthoma elasiticum. Fundoscopy reveals angioid streaks as irregular dark brownish lines radiating from the area around the optic disc. Choroidal neovascularization (CNV) is the major cause of severe visual loss in patients with angioid streaks.

Changes in macular pigment optical density and serum concentrations of its constituent carotenoids following supplemental lutein and zeaxanthin: the LUNA study.

Macular pigment (MP), consisting of lutein (L) and zeaxanthin (Z), is believed to protect the retina from photo-oxidative damage. The current study investigates, in terms of MP optical density (MPOD) and serum concentrations of its constituent carotenoids, response to supplemental L and Z, and co-antioxidants. An intervention (I) group, consisting of 108 subjects (mean [+/-SD] age: 71.