Glasses wearers often notice temporary indentations on their skin after removing eyewear. Many wonder if these marks signify a deeper issue, such as skull deformation, which is understandable as eyewear sits directly on facial structures for extended periods. This article clarifies what causes these indentations and whether they pose any significant risk to your bone structure.
Understanding the Indentation
The marks left by glasses are not in the skull bone itself. They are impressions primarily in the soft tissues covering the bone, including skin, fat, and sometimes muscle or cartilage. These temporary marks are similar to those left by a tight sock or watch strap. The human skull, composed of dense bone, is resilient and not susceptible to permanent indentation from the minor pressure of eyeglasses.
The areas most commonly affected are the bridge of the nose and the skin behind the ears, where nose pads and temples rest. The skin on the nose, especially the bridge, is delicate and prone to compression due to prolonged pressure. The nose’s structure includes bone in the upper third and cartilage in the lower two-thirds, all covered by skin. This pressure causes the soft tissue to temporarily displace, resulting in a visible mark.
The weight of frames and lenses, along with the small surface area of nose pads, concentrates pressure on these points. While marks are typically superficial, continuous pressure can lead to skin compression, irritation, or redness, especially for sensitive skin. Frame material, weight, and fit significantly influence the degree of indentation.
Mitigating Pressure and Discomfort
Preventing pressure marks involves ensuring a proper fit and considering eyewear characteristics. An ill-fitting frame is a common reason glasses leave marks and cause discomfort. Frames should sit comfortably on the nose bridge without pinching, and temple arms should gently hug the head without digging in behind the ears.
Regular adjustments by an optician are important to ensure glasses fit correctly and distribute weight evenly. Opticians can adjust nose pads, bridge width, or temple length to alleviate pressure points. Choosing lightweight frames, such as titanium or thin plastic, can reduce pressure. High-index lenses for strong prescriptions are thinner and lighter, further minimizing weight.
Taking periodic breaks from wearing glasses allows skin to recover from constant pressure. Removing them when not needed, such as while reading or washing your face, can be beneficial. While marks are generally harmless, persistent pain, discomfort, or skin irritation may indicate a need for professional adjustment or a different frame. Consulting an optician can help identify the issue’s root cause and ensure comfortable, functional eyewear.