Getting older at age need not make you also look old. At the age of 50 or 60 you could still look like 30 or 40 by the way you dress up. Looking younger than what you are would win lot many followers in your circle. If you are a fitness trainer, then attracting more customers could be made easy with the right appearance that you could get with the well-maintained body, dressing style and the accessories. In a fitness centre, the bracelet or earrings and all other flashy things would not make sense. So, why not the classy eyeglasses though you are not diagnosed for eye power.
You could clearly depict how much cautious you are about making your vision clear about every minute detail that you are noting down for your customers when you are serving them by being their personal trainer. The cheap glasses online would help you the best when it comes to getting it delivered to home in no time when the previous one is damaged by any mishandling of the gym equipment or else dropping it off by mistake by your grandchildren.
When the delivery is made quick you do not have to give too many reasons for not wearing the glasses. Also, you do not have to repeat the same reason multiple times to multiple customers. This would be a workable solution for you. You do not have to cancel any of your appointments with your customers, you could continue to train them with their rigorous and highly intensive exercises designed specifically to make them fit or build their muscles. Getting the followers would always help grow brand image and opportunities in your other businesses and professionals too if not as personal trainer. You could also refer the online store, to your clients and customers, which offered wonderful collection of eyeglasses and frames.