8 research outputs found
A Discussion of Commercially Available Intra-ocular Telescopic Implants for Patients with Age-Related Macular Degeneration
Age-related macular degeneration (AMD) is the
leading cause of visual impairment in the
western world, causing significant reduction in
quality of life. Despite treatment advances, the
burden of visual impairment caused by AMD
continues to rise. In addition to traditional low
vision rehabilitation and support, optical and
electronic aids, and strategies to enhance the
use of peripheral vision, implantable telescopic
devices have been indicated as a surgical means
of enhancing vision. Here we examine the literature on commercially available telescopic
devices discussing their design, mode of action,
surgical procedure and published outcomes on
visual acuity, quality of life, surgical complication rates and cost effectiveness data where
available
Pilot randomised controlled trial of face-down posturing following phacovitrectomy for macular hole
BACKGROUND: To gather information on the effect of postoperative face-down posturing following combined phacoemulsification and vitrectomy for macular hole surgery in order to assist in the design of a larger definitive study. METHODS: Thirty phakic patients with stage II–IV full-thickness macular hole had combined phacoemulsification and pars plana vitrectomy with internal limiting membrane peel and 14% perfluoropropane (C(3)F(8)) gas. At the conclusion of surgery, patients were randomised either to face-down posture or to no posture, for 10 days. The primary outcome was macular hole closure. RESULTS: The macular hole was successfully closed in 93.8% of the face-down posture group and in all of the no-posture group. Mean visual improvement was 0.63 (SD=0.21) logMAR units in the face-down group and 0.53 (SD=0.22) in the no posture patients. CONCLUSION: Following combined phacoemulsification and vitrectomy, postoperative face-down posturing appears to make little difference to the final anatomical or visual outcome. If we assume a success rate of 95% in the posturing arm, and that there is no difference between posturing and non-posturing, then 798 patients would be required to be 90% sure that the 95% confidence interval will exclude a difference of more than 5%