Articles tagged with: Macula

Vitreomacular Adhesion And A New Treatment Option… Jetrea®

AN INTRODUCTION TO A NOVEL TECHNOLOGY

Vitreomacular Adhesion And A New Treatment Option… Jetrea®

The vitreoretinal interface (VRI) contains a diverse mix of extracellular molecules, including collagen, laminin, and fibronectin, that facilitate the adhesion between the vitreous cortex and the innermost retinal layer (the internal limiting membrane—ILM).

Recent imaging advances in optical coherence tomography (spectral domain; SD-OCT) have advanced the accuracy with which diseases of the VRI are diagnosed and managed. Even though patients may be totally asymptomatic, issues such as vitreomacular adhesion and vitreomacular traction may be present. While many do not warrant consultation for possible intervention, the primary-care practitioner will nonetheless uncover the “sleeping condition” with spectral domain optical coherence tomography (SD-OCT) and will need to make decisions.

Human Visual Analysis Of Electronic Data On A Liquid Crystal Display Monitor

Introduction Of Sepia Tones To The Current View Options In Medical Imaging

Human Visual Analysis Of Electronic Data On A Liquid Crystal Display Monitor

It has been established that the human eye sees color best but it is influenced by many factors. Issues such as chromatic aberration of the eye certainly impact on human perception as does brightness fatigue from the high-energy end of the spectrum…blue and ultraviolet light. Also blue light is inherently scattered more and because of chromatic aberration focuses in front of the retina creating a “blue defocus often estimated at the Snellen equivalent of 20/40”. The following from http://www.telescope-optics.net/eye_chromatism.htm illustrates both the proposed longitudinal and lateral eye chromatism.