Corneal size does matter in contact lens fit

 

Corneal size does matter. In fact, it can turn a simple soft contact lens fitting into a complex clinical puzzle. With increased corneal size, the sagittal depth does not match the size of the standard sagittal depth of off-the-rack soft contact lenses, making custom contact lenses a necessary means to an end.

We encountered this clinical conundrum when a 13-year-old young man came into the office complaining of an inability to wear contact lenses throughout the day. He had been to several eyecare practitioners, all of which resulted in unsuccessful attempts soft contact lens fittings. He was eager to transition into contact lenses because he is an active athlete, participating in lacrosse and football, both of which require helmets.

Related: Examining the symptoms, causes, and treatments of contact lens discomfort

The use of spectacles can often inhibit performance in sports with helmet requirements. In comparison to contact lenses, spectacles limit the field of view and provide less steady optics due to lens movement during contact sports performance. Furthermore, glasses temples are caught in between the head and a tight-fitting helmet, which consequently applies extra pressure on the sides of the athlete’s head. Contact lenses eliminate all of these variables and permit athletes to focus on the game rather than being annoyed at their glasses.

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