Which type of lens defect is most likely to be noticed by a myope before they wear their glasses?

A myope, or someone with nearsightedness, typically has difficulty seeing distant objects clearly while objects that are closer may appear sharper. This vision limitation often leads to a struggle with peripheral vision, as the distortion in this area can exacerbate the overall quality of vision at distance.

When they are not wearing their corrective lenses, myopes may become quickly aware of any distortion in their peripheral vision because it directly affects their spatial awareness and navigation. This type of lens defect is noticeable in day-to-day activities, as it interferes with their ability to perceive their surroundings correctly, particularly in situations where visual clarity at a distance is crucial.

The other options, while they may cause some level of noticeability, do not directly relate to the inherent optical issues that myopes experience. For example, scratches on the surface might ultimately impact vision quality but are often discovered after the glasses are worn. Color mismatches pertain more to lens tint or coating inconsistencies, which would not be noticeable until the lenses are worn. Frame alignment issues could certainly affect comfort and functionality but are typically detected after the glasses are put on, rather than being an immediate concern for myopes before wearing their glasses.