578Original Article The prevalence of myopia is growing in Taiwan.The increased severity and prevalence of high myopia may be due to an earlier onset of myopia.(1)Highly myopic eyes often have macular holes (MHs) Comparison of Primary Gas Tamponade and a

Background: A preference for the primary use of standard gas tamponade or a vitrectomy combined with other adjuvant measures to treat myopic eyes with macular holes (MHs) and retinal detachment (RD) has not been established. This arti-cle evaluates postoperative outcomes of both surgeries, and recommends a surgical method based on the findings. Methods: We reviewed the records of 61 patients (62 eyes) with high myopia (>-6.0 diopter,> 26 mm of axial length, or visible posterior staphyloma) and MHs with secondary RD (no peripheral retinal break) who were treated between April 1986 and September 2002 in southern Taiwan. Descriptive statistics of baseline examinations and results of the operations were retrospectively ana-lyzed. Results: Baseline clinical data of the primary gas tamponade and vitrectomy groups did not significantly differ, except for the mean preoperative log (minimum angle of resolution) visual acuity (VA) ( p = 0.016) and extent of RD ( p = 0.001, located in the posterior staphyloma only). None of the result