Why might a patient mistakenly believe they have an allergy after wearing a silicone hydrogel lens?

Silicone hydrogel lenses are designed to allow more oxygen to reach the cornea than traditional hydrogel lenses, enhancing comfort and wear times. However, some patients may experience dry eye symptoms when using these lenses due to a mismatch between the lens material's properties and the individual's tear film.

Dryness-related discomfort can lead to sensations that mimic allergic reactions, such as itching or a scratchy feeling, which may cause the patient to conclude that they have developed an allergy to the lenses. This confusion can arise because the symptoms of dryness are often similar to those experienced during an allergic reaction.

Understanding this aspect is crucial, as it enables practitioners to distinguish between discomfort caused by lens wear and true allergic responses. This recognition is important for providing appropriate advice and management strategies, ensuring that patients can enjoy the benefits of silicone hydrogel lenses without misunderstanding the nature of their symptoms.