Fig 1.
Subjective outcome evaluation.
Binocular (left column) and close-up (right column) pre- and post-operative photographs for subjective outcome evaluation.
Fig 2.
Methods for obtaining the objective outcome parameters.
Lower part: Method for evaluation of pupil centration (left) and hue value (right). Left: Yellow lines mark the outer border of the cornea, the inner border of the residual iris tissue and the artificial pupil opening. The centres of the cornea and the artificial iris pupil are marked by a yellow +. The distance between the centres of the cornea and the artificial iris pupil are measured in number of image pixels and converted into millimetres. Right: Exemplary selections of residual iris tissue (yellow #) and artificial iris (yellow *) to average the iris hues that were then converted into a 3-digit value of the LAB-colour system.
Fig 3.
Collage of 9 sets of pre- and postoperative bilateral photographs of three different damage types and iris colours each.
Damage types (aniridia, partial iris defect and traumatic mydriasis) are arranged horizontally and iris colours (blue, green and brown) vertically.
Fig 4.
Upper four images: Pre- and postoperative binocular (left) and close-up (right) photographs of the lowest postoperative artificial pupil decentration (0.02 mm). Lower four images: Pre- and post-operative binocular (left) and close-up (right) photographs of the highest post-operative artificial pupil decentration (1.04 mm).
Fig 5.
Objective colour differences between the artificial iris compared to the residual tissue.
Pre- and post-operative photographs of the best, ΔE = 1.81 (upper row), and the worst, ΔE = 24.05 (lower row), colour match between artificial iris and residual iris tissue.
Table 1.
Questionnaire about the aesthetic outcome of the artificial iris surgery.
Table 2.
Summary of subjective and objective outcome measure for the aesthetic results.
Table 3.
Hue differences in dependence of the iris colour.
The difference value (ΔE*) was compared between the artificial iris and the remaining iris tissue, as well as the artificial iris and fellow eye iris.