Mechanical Property Comparison of 23-, 25-, and 27-Gauge Vitrectors across Vitrectomy Systems.

Objective: To investigate the mechanical properties of 23-, 25-, and 27-gauge vitrectomy vitrectors across 3 different vitrectomy systems to inform surgical techniques.

Design: An experimental study that did not involve any human subjects.

Methods: Nine vitrectors (3 each of 23-, 25-, and 27 gauge) from Alcon, Dutch Ophthalmic Research Center (DORC), and Bausch & Lomb (B/L) were measured.

Clinical variables associated with failure of retinal detachment repair: the European vitreo-retinal society retinal detachment study report number 4.

Objective: To identify risk factors associated with failure of anatomic reattachment in primary rhegmatogenous retinal detachment repair.

Design: Nonrandomized, multicenter, collaborative study.

Participants: Primary procedures for 7678 rhegmatogenous retinal detachments reported by 176 surgeons from 48 countries.

Sympathetic ophthalmia.

Background: Sympathetic ophthalmia (SO) is a rare, bilateral, non-necrotizing, granulomatous uveitis that occurs after ocular trauma or surgical procedures to one eye threatening sight in the fellow eye. The pathophysiology is not clearly understood, but it appears that the disrupted integrity of the inciting eye leads to an autoimmune hypersensitivity reaction against the exposed ocular antigens in the injured eye as well as in the sympathizing eye. More recently, vitreoretinal surgery has been noted to be a risk factor for the development of SO.

Retinal arterial macroaneurysm with blood-staining of the internal limiting membrane and optic nerve.

An 83-year-old man presented with a retinal arterial macroaneurysm complicated by vitreous hemorrhage, hyphema and ghost cell glaucoma requiring surgical intervention. After pars plana vitrectomy, anterior chamber wash-out and laser photocoagulation, the retinal arterial macroaneurysm closed but blood-staining of the optic nerve, internal limiting membrane and peripapillary vessels persisted. The rare sequela of blood-staining, which in this case did not adversely affect the final visual outcome, further contributes to our understanding of the wide ranging clinical spectrum of retinal arterial macroaneurysms.

Surgical management of pseudophakic retinal detachments: a meta-analysis.

Purpose: To compare the success of pars plana vitrectomy (PPV) versus scleral buckle (SB) in the management of uncomplicated pseudophakic retinal detachments (RDs).

Design: Meta-analysis of published studies from 1966 to 2004 regarding surgical treatment of pseudophakic RDs.

Participants: Two thousand two hundred thirty eyes: 1579 operated by SB, 457 by PPV, and 194 by the combined method of PPV and SB.

Bilateral intraocular foreign bodies simulating crystalline lens.

Purpose: To report a case of large bilateral intraocular foreign bodies mistaken for crystalline lens on computed tomography (CT).

Design: Case report.

Methods: A 24-year-old man was referred after bilateral open globe repair following a motor vehicle accident.

Progressive outer retinal necrosis and acute retinal necrosis in fellow eyes of a patient with acquired immunodeficiency syndrome.

Purpose: To describe an unusual concurrence of acute retinal necrosis and progressive outer retinal necrosis in fellow eyes of a patient with acquired immunodeficiency syndrome (AIDS).

Methods: Interventional case report. In a 37-year-old man with AIDS and herpes zoster keratitis in the right eye, progressive outer retinal necrosis developed in the right eye and acute retinal necrosis developed in the left eye.