نتایج جستجو برای: لیزر nd yag
تعداد نتایج: 35929 فیلتر نتایج به سال:
Fifty four eyes of 54 patients undergoing Nd-YAG laser posterior capsulotomy were randomly assigned to pretreatment with either 125 mg of oral acetazolamide (group A) or placebo (group B). During the first 3 hours following capsulotomy, an intraocular pressure (IOP) rise of at least 10 mm Hg was recorded in eight of the 26 eyes of group B (30.8%) and in none of the 28 eyes of group A (p < 0.01)...
Using confocal Raman and fluorescence spectroscopic imaging in 3-dimensions, we show direct evidence of inhomogeneous Nd(3+) distribution across grain boundaries (GBs) in Nd(3+):YAG laser ceramics. It is clearly shown that Nd(3+) segregation takes place at GBs leading to self-fluorescence quenching which affects a volume fraction as high as 20%. In addition, we show a clear trend of increasing ...
Here, we report the case of a patient who sustained Nd: YAG laser macular injury with subsequent 6 year follow-up evaluation. A 23-year-old female was accidentally exposed to a Q-switched Nd: YAG laser without protective goggles. Upon initial evaluation, the best-corrected visual acuity of her affected eye was 20/100 OD. Fundoscopic examination revealed a macular laser burn and vitreous hemorrh...
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