Department of Anesthesia, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA.
Anesth Analg. 2010 Jan 1;110(1):119-21. doi: 10.1213/ane.0b013e3181a49cae. Epub 2009 Jul 17.
Patients with long axial length (AL) eyes (> 25 mm) are at increased risk of globe perforation during performance of intraconal (retrobulbar) eye block. These patients often require glasses or contact lenses for myopia (nearsightedness) as children or young adults. A history of early correction for myopia might, therefore, be a predictor of long AL eyes. One hundred one patients undergoing cataract surgery had AL measured and answered questions about their use of corrective lenses. We found that a history of correction for myopia as a child or young adult was 82% sensitive and 84% specific for having a measured AL > or = 25 mm. Patients with this history may be at increased risk for globe perforation during intraconal block.
长眼轴（AL）（> 25 毫米）的患者在进行眼窝内（球后）眼肌阻滞时，眼球穿孔的风险增加。这些患者通常在儿童或青年时期就需要戴眼镜或隐形眼镜来矫正近视。因此，早期矫正近视的病史可能是长眼轴的预测因素。101 名接受白内障手术的患者测量了眼轴长度，并回答了有关他们使用矫正镜片的问题。我们发现，儿童或青年时期有近视矫正史的患者，其测量的眼轴长度大于或等于 25 毫米的敏感性为 82%，特异性为 84%。有这种病史的患者在进行球后阻滞时，眼球穿孔的风险可能增加。
