[Caution over diagnosis of preperimetric glaucoma].

Preperimetric glaucoma (PPG) refers to the earliest stage of primary open-angle glaucoma (POAG) before emergence of visual field defects. However, the existence and diagnosis of the PPG stage remains controversial. In this article, with focuses on the clinical significance of intraocular pressure measurements, the etiology classification of POAG, the value of follow-up to PPG diagnosis, the accuracy of devices and methods, and genetic factors of POAG, we point out that PPG should be carefully diagnosed in clinical practice. It is hoped that constant and deep understanding of PPG could help to reach consensus opinions, thus improving and enhancing the diagnosis and treatment of glaucoma.视野前期青光眼（PPG）是指视野缺损出现前的原发性开角型青光眼（POAG），其存在与否以及如何判断尚无普遍共识。本文从正确看待眼压测量的临床意义，努力以POAG病因分类为基础，重视随访对PPG诊断的价值，提高检测设备和方法的准确性，结合POAG的遗传学因素5个方面，强调并指导临床谨慎诊断PPG，以便在临床实践中真正了解并不断深入认识PPG，进一步达成共识性意见，提高青光眼的诊疗水平。.