Posterior dislocation of an intraocular lens into the vitreous cavity is uncommon but is a difficult problem to manage. Various techniques have been described but most of them entail the use of specially manufactured expensive instruments. The aim of this study, therefore, is to develop a low-cost surgical snare in retrieving a dislocated posterior chamber intraocular lens (PCIOL). The snare consists of a 6.0 polypropylene suture threaded into a 21-gauge flute cannula. The loop of suture formed is used to secure the haptics of the lens. This is used after a pars plana vitrectomy to retrieve the dislocated PCIOL. The snare is easy to make with inexpensive disposable surgical materials. (Author)
Human ; Male ; Middle Aged ; SURGERY ; CANNULA

Objective: To determine the range of macular pigment optical density (MPOD) levels in healthy Filipino adults using both the MPS II and the macuscope and to investigate whether age and sex were related to inter-subject variations in MPOD. Methods: This was a prospective, cross sectional study of 168 healthy Filipino patients who underwent heterochromic filter photometry to measure macular pigment levels using the MPS II and the macuscope. The MPOD levels were averaged per age group and analyzed as to variations among age and gender. Results: One hundred thirty (130) and thirty-eight (38) patients underwent MPS II and macuscope testing respectively. The mean MPOD level for MPS II was 0.39(±0.16) and for macuscope 0.27(±0.07). MPOD values were similar across all age groups and gender, but they were lower when measured with the macuscope. Conclusions MPOD levels measured among healthy Filipino adults were lower with the macuscope compared to the MPS II. These differences should take into consideration the differences in apparatus and techniques of measurement.
Macular Degeneration ; Zeaxanthins