You can read better when you have presbyopia without having to buy corrective lenses: that's what a magnifying glass does. How do they work and, above all, do you need to invest in them? We'll explain it all to you.
As the population ages, more and more people are affected by presbyopia. Presbyopia is a visual impairment that prevents the lens from focusing properly, resulting in blurred near vision and eye strain. Presbyopia generally begins between the ages of 40 and 60 and causes difficulties in reading correctly at a distance of generally 30 cm. The magnifying glass was born to help these people read with confidence.
Magnifying glasses : how does it work ?
The magnifying glass is based on a very simple principle: two magnifying glasses can magnify several diopters (from +0.50 to +4), so the characters to be read can be better distinguished. These are therefore basic corrections. Moreover, they are inexpensive and can be used without a prescriptionThis is one of the reasons why they are so popular with people who do not want to wait for an appointment with an ophthalmologist. However, they are not intended to correct vision problems, such as farsightedness, nearsightedness and astigmatism, which are usually already present when presbyopia occurs.
Some brands, such as Lunetloop, have provided several models of loupes with a number of different designs.
The advantages of magnifying glasses
Although magnifying glasses are not suitable for people with real underlying vision defects, they can be a good idea for those who never needed corrective lenses before the onset of presbyopia. These people are called face-up people and represent about a quarter of the population. At home, a magnifying glass is used as a troubleshooting method to correct vision when reading up close. They can also help reduce eyestrain caused by the difficulty of adjusting presbyopia.
Thus, for optical manufacturers, the manufacture of magnifiers can not only attract new audiences, but also new points of sale: pharmacies, supermarkets, or websites that sell such frames.
Does this mean we should invest?
However, these benefits must be qualified. The magnifying glass is indeed a solution of repair and is not appropriate for people with a real visual deficiency. They can never replace a consultation with an ophthalmologist. Moreover, the quality of their lenses is inferior to that of traditional corrective lenses, and in most cases, there is no protective filter (such as anti blue light) and surface treatment (such as anti-reflective). They also cannot correct optical aberrations, which can cause image distortion around the edges of the lens.
If you choose to invest in a magnifying glass, you need to alert your customers to all of these items so they can provide them to the right people!