Depending on which cone-shaped photoreceptor is defective, anomalous trichromacy is divided into three categories: protanomaly (defective red cone cells), deuteranomaly (defective green cone cells), and tritanomaly (defective blue cone cells). As the third classification, anomalous trichromacy occurs when one of the cone-shaped photoreceptors is defective. Monochromat people are completely colorblind (achromatopsia) or have only blue cone-shaped photoreceptors. Monochromacy is the rarest type of color blindness in which at least two cone-shaped photoreceptors are missing. Dichromacy occurs when one of the cone-shaped photoreceptors is completely missing and is categorized as protanopia (missing red cone cells), deuteranopia (missing green cone cells), or tritanopia (missing blue cone cells). There are three different types of color blindness: dichromacy, monochromacy, and anomalous trichromacy 3.
This ocular disorder can be either acquired or congenital and is caused by the lack of or a deficiency in the cone-shaped photoreceptors 2. short (S), medium (M), and long cones (L) which are responsible for perceiving blue, green, and red colors with spectral sensitivity peaks around the 430, 530, and 560 nm, respectively 1.Ĭolor blindness, or color vision deficiency (CVD), is an ocular disease that prevents the recognition and perception of specific colors by three photoreceptors which, in normal vision, are all present and function according to their spectral sensitivity peaks. Human color vision originates from three types of cone-shaped photoreceptors, i.e. The biocompatibility, low cost, stability, and simple fabrication of these contact lenses can offer new insights for applications of color blindness correction. The plasmonic contact lens proposed herein is based on the plasmonic surface lattice resonance (SLR) phenomenon and offers a good color filter for color blindness correction. In addition, the stability test of the fabricated plasmonic contact lenses was investigated into the phosphate buffered saline (PBS) solution and the proposed lens offers an excellent stability into the PBS solution.
In this study, 2D biocompatible and flexible plasmonic contact lenses were fabricated using polydimethylsiloxane (PDMS) and a low-cost, and simple design based on the soft nano-lithography method and investigated for correction of red–green (deuteranomaly) color blindness. Recently, tinted glasses and lenses have been studied as hopeful devices for color blindness correction.
Color blindness, or color vision deficiency (CVD), is an ocular disease that suppresses the recognition of different colors.
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