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Optical aberrations produced by mouse skull is a barrier for imaging of the brain. Here we present a characterization of murine skull optical aberrations and its memory effect, using a modeling method, and direct measurement. 

Abstract Wavefront‐shaping (WS) enables imaging through scattering tissues like bone, which is important for neuroscience and bone‐regeneration research. WS corrects for the optical aberrations at a given depth and field‐of‐view (FOV) within the sample; the extent of the validity of which is limited to a region known as the isoplanatic patch (IP). Knowing this parameter helps to estimate the number of corrections needed for WS imaging over a given FOV. In this paper, we first present direct transmissive measurement of murine skull IP using digital optical phase conjugation based focusing. Second, we extend our previously reported phase accumulation ray tracing (PART) method to provide in‐situin‐silicoestimation of IP, called correlative PART (cPART). Our results show an IP range of 1 to 3 μm for mice within an age range of 8 to 14 days old and 1.00 ± 0.25 μm in a 12‐week old adult skull. Consistency between the two measurement approaches indicates that cPART can be used to approximate the IP before a WS experiment, which can be used to calculate the number of corrections required within a given field of view.