What is an abnormal symptom of contact lens wear?

Persistent pain is considered an abnormal symptom of contact lens wear because it may indicate a serious underlying issue with the lenses, their fit, or the wearer's eye health. Contact lens wear should generally be comfortable, and while minor discomfort can occur, ongoing or sharp pain is alarming and should prompt immediate evaluation by an eye care professional. It can signify problems like corneal abrasions, infections, or an inappropriate lens material or prescription.

In contrast, mild photophobia, slight temporary tearing, and itching can sometimes occur in individuals wearing contact lenses, particularly as the eyes adjust to them or in response to environmental factors. These symptoms may not necessarily indicate a problem requiring urgent attention, whereas persistent pain is a red flag that suggests the need for further investigation and intervention.