2022年3月9日 · A healthy sclera is white. But what does it mean when the sclera takes on a different hue? Here are a few colors your sclera might turn, and possible reasons why.

2025年1月9日 · Eye discoloration in the white part of the eye (the sclera) can stem from various causes. One common reason is the presence of harmless bumps or patches, such as pinguecula. Yellowing of the sclera is a sign of jaundice, resulting from liver, gallbladder, or …

2024年2月7日 · The sclera, or white of the eye, is strong tissue that wraps around your eyeball. It helps maintain your eye’s shape and protects it from injury. Many irritants or health conditions can make the entire sclera change color or cause spots of color.

In humans, and some other vertebrates, the whole sclera is white or pale, contrasting with the coloured iris. The cooperative eye hypothesis suggests that the pale sclera evolved as a method of nonverbal communication that makes it easier for one individual to identify where another individual is looking.

The whites of the eyes, known medically as the sclera, can sometimes take on a greyish color as people age. This discoloration is usually harmless, but in some cases it can signal an underlying health condition. There are a few potential causes for grey sclera, which this article will explore in …

2023年5月24日 · In the simplest terms, the sclera represents the “white” of the eye or the white portion of the eye that surrounds the colored portion, or iris. Conditions that affect the sclera include ectasia, episcleritis, sclera coloboma, scleritis, and senile scleral plaques.

Redness or yellowness of the sclera (the light part of the eye) are known signs of illness, as is looking older than one's actual age. Here we report that the color of the sclera is related to age in a large sample of adult Caucasian females. Specifically, …

2022年1月25日 · The layers of protective armor that give your eye its white color and the sclera its overall strength include randomly patterned collagen fibers and tissues called the episclera, the stroma, the lamina fusca, and the endothelium. Typically, the entire sclera, not just one layer, changes color or accumulates spots.

Our results demonstrate that humans are much slower and less accurate in detecting faces with modified sclera during nighttime compared to daytime. Future studies could investigate how subtle changes in sclera color (i.e., sclera colors that are manipulated in small increments) impact gaze detection in both daytime and nighttime.

2019年2月26日 · The sclera is the dense connective tissue of the eyeball that forms the "white" of the eye. It is continuous with the stroma layer of the cornea. The junction between the white sclera and the clear cornea is called the limbus. The sclera ranges in thickness from about 0.3 millimeter (mm) to 1.0 mm.