From the same data set 2D en face RNFL retardation, thickness and birefringence maps can be calculated.
19– 21 The polarisation-sensitive OCT (PS-OCT 1300, Thorlabs) can detect an increase in the average face phase retardation of the posterior surface of the cornea in keratoconus patients due to changes in the lamellar structure of collagen fibres, which may be useful in early diagnosis.
In the optic nerve head area the computed en face maps of retardation and axis orientation show the spreading of nerve fiber bundles in high detail as well as the radially symmetric distribution of axis orientation values [ 37, 43].
Although in this family, at autopsy, the second and third foetuses were noted to have physical findings seen in 3-M syndrome (large head, heel pads, prenatal growth retardation, triangular face, hypoplastic midface and long philtrum) these findings were not specific enough by themselves to consider a differential diagnosis of 3-M syndrome.
Further, the efficiency of processing is dependent upon whether a lesion was oriented "in" i.e., facing the histone octamer, or "out" i.e., facing solution, with higher levels of retardation observed with lesions facing inwards [26], [27], [28], [29], [30], [34], [35], [36], [37] and recently reviewed in ref [38].
The common symptoms of the disorder include growth and mental retardation, unusual faces, and cutaneous abnormalities [ 34,35,36 ].
Complications include airway disorder, mental retardation, a characteristic face, heart disease, and skeletal deformities.
Circumferential skin creases Kunze type is a newly defined syndrome that is characterized by circumferential creases, cleft palate, typical face, intellectual disability, and growth retardation.
The clinical potential of the system is shown by en face visualization of the phase retardation and optic axis orientation of the retinal nerve fiber layer in a healthy volunteer and a glaucoma patient with nerve fiber loss.
