determined not only by the eye itself but also environmental influences. The interaction of the eye media such as cornea, lens or vitreous humour with the retina can lead to reduced visual acuity, for instance

children or youths who have not yet completed their sixteenth year of life. We do not collect such data or provide such data to third parties. 22. Security We implemented technical and operational protective [...] is one who can be identified, directly or indirectly, in particular by reference to an identifier (such as a name, an identification number, location data, an online identifier or to one or more factors [...] which is performed on personal data or on sets of personal data, whether or not by automated means, such as collection, recording, organization, structuring, storage, adaptation or alteration, retrieval

text and background. Whilst this function is not to be found on Android devices, numerous settings such as colour inversion are available on the iOS. Besides the integrated contrast mode, the Windows phone

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be corrected through the use of a vision aid. The visual impairment caused by other sight defects, such as night blindness or amblyopia, cannot be corrected. What is amblyopia? Amblyopia is a vision defect