What happened to the yellow spot on the eye?

  A common clinical condition with macularity in the eye is lid fissures and hyperpigmentation. This condition is mostly caused by congenital factors and acquired environmental factors.  The occurrence of lid lacrimation is mostly due to external environmental factors, personal habits. People who work outdoors for long periods of time, people who live in highland areas, and people who are exposed to UV radiation for long periods of time are prone to this condition. In addition, people who stay up late and are exposed to electronic products such as cell phones, TVs, and computers are also prone to this condition. This condition often occurs in middle-aged people and above, while it is less common in teenagers, which is considered to be related to the individual’s physique. The occurrence of conjunctival hyperpigmentation is usually caused by congenital factors, but the time of occurrence may vary, some can occur after birth, while some adolescents or even adults will appear, the hyperpigmentation may slowly disappear with age, but may also slowly grow. This condition usually does not cause any uncomfortable symptoms.  Another relatively rare cause of macularity on the eye is that a rust-like foreign body enters the surface of the bulbar conjunctiva and is not removed in time, producing a yellow rust ring around it, thus leading to the formation of macularity.