Retinasphalt is a medical term that describes the appearance of the retina after retinal detachment surgery. The word is spelled with a "t" instead of a "d" because of its etymology. The "re-" prefix means "again," and "tina" comes from the Latin word for "covering." The IPA phonetic transcription of the word is /ˌrɛtɪnˈæsfɔlt/, with stress on the second syllable. The "t" sound is pronounced more like a "ch" sound in English, giving the word a unique, somewhat harsh sound.
Retinasphalt refers to a term coined in the field of color psychology and perception, describing a visual phenomenon that occurs when intense sunlight reflects off hot asphalt, causing temporary distortion or even illusionary visual effects to the observer's retina. This optical illusion is characterized by a peculiar shimmering or melting appearance perceived on the road surface, often accompanied by the impression that objects such as cars or pedestrians are moving or morphing. The term "retinasphalt" is a blend of "retina," the light-sensitive tissue at the back of the eye, and "asphalt," referring to the dark, bituminous substance typically used for road surfacing.
Retinasphalt occurs due to the interaction between the sun's intense rays and the asphalt's heating properties. As sunlight penetrates the observer's eyes, it stimulates the photoreceptor cells in the retina, which then send electrical signals to the brain for interpretation. When the sun's rays hit the hot asphalt, they reflect and refract, creating a mirage-like effect as they interact with the surrounding air layers. This altered light path can distort the visual information reaching the retina, leading to the perception of moving or distorted images.
Although not fully understood, retinasphalt is believed to result from a combination of atmospheric refraction, heat convection, and the human visual system's interpretive process. The phenomenon is most commonly experienced during midday or in areas with high temperatures and sun exposure, where the asphalt reaches its peak temperature. While retinasphalt can be intriguing or fascinating, it is essential to note that it can temporarily affect visual perception, potentially leading to a minor risk for motorists or pedestrians if not acknowledged and compensated for.
A mineral resin found in the coal strata; retinite.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The term "Retinasphalt" is a portmanteau combining the words "retina" and "asphalt".
The word "retina" originates from the Latin word "rete", which means "net". It is a membrane at the back of the eye that contains light-sensitive cells and is responsible for receiving and transmitting visual information to the brain.
The word "asphalt" comes from the Greek word "asphaltos", which means "secure". It refers to a sticky, black, and highly viscous substance found in natural deposits or produced through refining processes. Asphalt is commonly used in road construction and surfacing.
"Retinasphalt" is a neologism often used metaphorically to describe the powerful or captivating visual impact of a scene or image that leaves a lasting impression on a person's perception, akin to the way asphalt effectively captures one's attention due to its dark and intense appearance.