Retinoblastoma is one of the more highly invasive and common intraocular malignancies of childhood. Treatment in most of the cases consists of enucleation followed by placement of orbital implants. Prosthetic rehabilitation is especially challenging in younger and precooperative pediatric patients. The following case report describes the rehabilitation of a 4-year-old child with retinoblastoma,...

A new technique for extracting information on the size of the pupil of the human eye is presented. It is based on the recording of coherent short-exposure retinal images of a point source after double pass through the ocular media. The eye's pupil size is then estimated by computing the cutoff frequency in the power spectrum of these coherent images, which is related with the average width of t...

Ocular prostheses are important determinants of their users' aesthetic recovery and self-esteem. Because of use, ocular prostheses longevity is strongly affected by instability of the iris color due to polymerization. The goal of this study is to examine how the color of the artificial iris button is affected by different techniques of artificial wear and by the application of varnish following...

Loss of tissue, whether congenital or traumatic or resulting from malignancy or radical surgery, is accompanied by esthetic and psychologic effects. This loss is more pronounced when the affected part is the eye and all orbital contents, resulting in gross mutilation. Success in maxillofacial prosthetics depends on the full cognizance of the principles that underlie facial harmony, color matchi...

Two methods for objectively measuring eye tracking data quality are explored. The first method works by tricking the eye tracker to detect an abrupt change in the gaze position of an artificial eye that in actuality does not move. Such a device, referred to as an artificial saccade generator, is shown to be extremely useful for measuring the temporal accuracy and precision of eye tracking syste...

Rapid prototyping (RP) is a technique of manufacturing parts by the additive layer manufacturing technology; where, a three-dimensional (3D) model created in a computer aided design (CAD) system is sectioned into 2D profiles, which are further constructed by RP layer by layer. Its use is not limited to industrial or engineering fields and has extended to the medical field for the manufacturing ...