ISO 18490:2015规定了光学类型的形式、图表的质量要求、测试程序以及无损检测人员近视力的验收水平。它还解决了允许进行测试的人员的资格要求。 ISO 18490:2015仅针对规定条件下的近视力，类似于常规无损检测中遇到的条件。它没有解决个人的整体视力，并且建议用户考虑需要由专业医务人员进行一般的眼科检查，以确保一般的视觉敏锐度适合于工作职能。 ISO 18490:2015未涉及颜色视觉要求。

ISO 18490:2015 specifies the form of the optotype, the quality requirements for the chart, the test procedure, and the acceptance level for near vision acuity of NDT personnel. It also addresses the qualification requirements for personnel permitted to carry out the test. ISO 18490:2015 only addresses near vision acuity under defined conditions similar to those encountered during routine NDT inspection. It does not address an individual's overall visual acuity and users are advised to consider the need for a general eye examination by specialist medical personnel to ensure general vision acuity is appropriate for job function. ISO 18490:2015 does not address colour vision requirements.