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J Cai, H Zhou, R-L Wei, H Zhu, Y Li, Y Li, X Ma; Krypton Yellow Laser for the Treatment of Macular Hole in High Myopia . Invest. Ophthalmol. Vis. Sci. 2002;43(13):2473.
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Purpose: It is almost a consistent recognition that the idiopathic macular hole should be treated by vitrectomy. But the treatment of macular holes without retinal detachment in high myopia remains controversial. This prospective study is designed to evaluate the prophylactic effect of krypton yellow laser for the treatment of macular holes in high myopic eyes in order to prevent retinal detachment. Method: Twenty seven eyes of 27 patients of high myopia with macular holes were randomly divided into two groups. Group A (15 eyes) were subject to laser photocoagulation (wavelength 568nm, power 100∼300mw, spot size 100∼200µm, exposure time 0.1s) around the hole margin with the oral use of adjunctive drug vitamin B1, while group B (12 eyes) were only given oral vitamin B1. The average follow-up time was 17.3 months. The average visual acuity of the two groups before and after treatment was compared. Results: The rates of retina1 detachment in group A and group B were 20%(3/15) and 58.3%(7/12), respectively. There was a significant difference between the two groups (X2=4.20, P<0.05). The average best corrected visual acuity of group A at first visit was 20/200, while the average BCVA at least six months after photocoagulation or surgery due to retinal detachment was 24/200. There was no significant difference between them (P≷0.05). The average BCVA of group B at first visit was 24/200, while the average BCVA at least six months after first visit or surgery due to retinal detachment was 20/200. The changes were not statistically significant (P≷0.05). Conclusion: Compared with the treatment of oral medicine, krypton yellow laser photocoagulation reduce the rate of retinal detachment of macular hole in high myopia without the impairment of visual outcome. Therefore, krypton yellow laser photocoagulation is relatively an effective and safe method for the treatment of macular holes in high myopic eyes to prevent retinal detachment.
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