Undoubtedly, Dr. Ahmed Zewail, who passed away on August 2, 2016, had a strong, positive impact on science in the Middle East and in the West. I knew Zewail as one of his mentors and close friends. Zewail wanted to come from Egypt (Alexandria University) to get his PhD in my group at the University of California, Los Angeles (UCLA). Unfortunately, I was away on sabbatical and thus did not see h...

Ahmed Zewail passed away on 2 August 2016. This was a tremendous loss to the community of scientists working on ultrafast phenomena. He pioneered the study of the dynamics of chemical bonds using ultrashort laser pulses, which he had named Femtochemistry. This achievement would change our way of looking at how chemical bonds break, form, and transform. It would encompass several fields of resea...

PURPOSE To evaluate position and function of antiglaucomatous Ahmed and Molteno shunts using magnetic resonance imaging with head and surface coils. METHODS Eight patients (5 males) with shunt implants were included, 4 with Ahmed (FP-7) and 4 with Molteno (s1, single plated). All patients were operated at least 6 months before imaging. In 3 cases (2 with Molteno and 1 with Ahmed shunt), the i...

PURPOSE To describe short term outcomes of Ahmed Glaucoma Valve [AGV] implantation in East African patients. MATERIALS AND METHODS In this multi-center retrospective case series we reviewed eyes of Black African patients with refractory glaucoma, treated consecutively with Ahmed Glaucoma Valve implantation, in two centers in Kenya between January 2006 and October 2007. RESULTS About 25 case...

BACKGROUND AND OBJECTIVE To evaluate the efficacy and safety of the pars plana Ahmed glaucoma valve (New World Medical, Inc., Rancho Cucamonga, CA) implant combined with pars plana vitrectomy and panretinal photocoagulation for the management of neovascular glaucoma in patients with vitreous hemorrhage. PATIENTS AND METHODS The records of 18 eyes of 17 consecutive patients with neovascular gl...

Surgical management of elevated intraocular pressure (IOP) in an eye with scarred conjunctiva, an encircling band, and silicone oil has limited options. By combining the flow restrictor of the Ahmed Glaucoma Valve (New World Medical, Rancho Cucamonga, California) and the capsule of the encircling band as a conduit for aqueous flow, immediate pressure reduction could theoretically be achieved in...

References: 1. AHMED MS, 1994, IEE P-CONTR THEOR AP, V141, P315 2. AHMED MS, 1995, IEE P-CONTR THEOR AP, V142, P475 3. AHMED MS, 1998, INT J CONTROL, V69, P65 4. ALSUNNI F, 1999, IN PRESS ARABIAN J S 5. ASTROM KJ, 1990, COMPUTER CONTROLLED 6. AYOUBI M, 1995, P AM CONTR C SEATTL, P2757 7. GUPTA MM, 1991, P AM CONTR C, P30 8. HWANG GC, 1992, FUZZY SET SYST, V48, P279 9. JANG JSR, 1995, P IEEE, V8...

Correction for 'Chemical conversion of self-assembled hexadecyl monolayers with active oxygen species generated by vacuum ultraviolet irradiation in an atmospheric environment' by Ahmed I. A. Soliman et al., Soft Matter, 2015, 11, 5678-5687.

BACKGROUND To describe management of a case of intraocular lens (IOL) and capsular bag (CB) dislocation in an eye with an Ahmed glaucoma valve in the posterior chamber. CASE PRESENTATION A 75-year-old pseudophakic man with open-angle glaucoma and diabetic retinopathy developed neovascular glaucoma. After two intravitreous injections of bevacizumab and panretinal photocoagulation were administ...

PURPOSE To report on the efficacy and safety of combined phacoemulsification and an Ahmed valve glaucoma drainage implant with respect to visual acuity improvement, intraocular pressure (IOP) control, and requirement for antiglaucoma medication. METHODS A retrospective chart review was conducted of 41 eyes (31 patients) with coexisting visually significant cataracts and uncontrolled glaucoma ...