نتایج جستجو برای: posterior segment
تعداد نتایج: 191050 فیلتر نتایج به سال:
Posterior microphthalmos is a rare condition which is characterized by the disproportionately small size of the posterior segment of the eye. The corneal diameter, central anterior chamber depth and the lens thickness are all within the normal range. We present a case of posterior microphthalmos with all normal anterior segment measurements except increased corneal curvature.
Twenty seven eyes treated for ischaemic central retinal vein occlusion with panretinal photocoagulation were reviewed. Prior to laser therapy anterior segment neovascularisation predominated (17 eyes) over posterior segment involvement (6 eyes). After photocoagulation anterior segment new vessels regressed or did not develop in the majority of cases. However, in five eyes previously absent post...
BACKGROUND Posterior fixation alone may not be adequate to achieve and maintain burst fracture reduction. Adding screws in the fractured body may improve construct stiffness. This in vitro study evaluates the biomechanical effect of inserting pedicle screws in the fractured body compared with conventional short- and long-segment posterior fixation. METHODS Stable and unstable L2 burst fractur...
An inch or less. That is the short distance an ocular drug must travel to reach a target site at the back of the eye. Research has traveled a long way over the past 4 decades in efforts to make this inch-long journey more successful. Delivering ocular drugs to their target tissues often requires them to traverse the fatwater-fat structure of the corneal barrier, while ensuring minimum wastage t...
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