Many begin to feel around age 40 a natural change in the ability to focus up close. The text on the phone moves farther away, reading becomes less comfortable, and sometimes it is necessary to switch between different pairs of glasses for reading, for the computer, and for distance vision. One of the common options for dealing with this change is multifocal glasses.
To understand what multifocal is, who it is suitable for, and what is important to know before making the switch, we spoke with Einav Gabay, an optometrist and the professional manager of ERROCA BT SUPER-PHARM.
What is multifocal?
"Multifocal is a lens that provides a solution for different ranges of vision, for near, intermediate, and distance, all in the same lens. Instead of switching between different pairs of glasses, one can enjoy sharp vision at all distances through a slight head movement and adjusting the gaze to the appropriate area in the lens".
What is the difference between multifocal lenses and regular lenses?
"Regular lenses provide correction for only one focal point, for example for reading, for the computer, or for distance vision. In contrast, multifocal lenses combine several focal points simultaneously. A person who wears glasses for the computer, for example, will not necessarily be able to comfortably read from the phone with them or see well at a distance. In multifocal, all ranges are combined in the same lens so that one can move between them relatively smoothly".
Who are multifocal lenses suitable for?
"In most cases, multifocal is suitable from age 40 and above, when a natural change occurs in the ability to focus up close. People begin to feel that the text moves away from them beyond arm’s length and a solution is required for more than one focal point. The earlier one starts with the appearance of the need, the easier it is to adapt. A person who starts at a relatively young age will usually adapt much more easily than someone who tries for the first time at a very advanced age. In specific medical cases and in rare instances, multifocal can also be fitted at a younger age, but these are specific situations".
When would you not recommend multifocal?
"There are professional cases in which I would not recommend multifocal, for example in diseases with loss of central visual field, in significant differences between the two eyes, and also in certain cases of strabismus the fitting may be complex. Therefore, it is important to undergo an examination and fitting with a certified optometrist who will examine the data and recommend accordingly for the benefit of the patient and their personal preferences".
What are the success rates of adaptation?
"The success rates are very high, especially when starting with the appearance of the need and not postponing the transition. I tend to explain to patients that this is a work tool, and like any tool, one needs to learn how to use it. At the beginning, head movement is not completely natural, and sometimes there is difficulty, for example when going down stairs, because the lower part of the lens is intended for near vision. But when one understands the structure of the lens and learns to move the head accordingly, the brain adapts quickly. Once there is good visual acuity, the visual system relaxes and quality of life improves significantly. Instead of switching between pairs of glasses, everything is in one lens".
How long does it take to adapt?
"Adaptation is individual and depends on factors such as the size of the prescription, the nature of the work, and daily habits. The first stage is to ensure good visual acuity both for distance and for reading. After that, it is recommended to begin gradual adaptation, sitting, walking in familiar places, and only later driving or going out into a less familiar environment. Usually within a week a clear direction is obtained regarding the feeling of suitability, and within about two weeks it is already possible to know if the glasses are suitable. A long warranty period makes it possible to give the process a real chance".
What are the signs of incompatibility?
"If one does not see well, that is of course a significant sign. Headaches or mild dizziness at the beginning are not uncommon, and as long as they are reasonable and gradually improve, there is not necessarily cause for concern. If after about a week there is no improvement at all in the feeling or in vision, it is advisable to contact an optometrist. Sometimes a small change in the frame, in the lens alignment, or in guidance for correct use מול computer can solve the problem. It is worth not giving up without consulting".
What tips do you have for choosing multifocal lenses and glasses?
"The first and most important tip is professional consultation. There are many types of multifocal lenses in price ranges that range from hundreds to thousands of shekels depending on the technology and the level of personal customization. An experienced optometrist will know how to match the precise lens to the specific needs of the customer. The choice of frame also matters. In most cases, one can choose freely according to personal taste, but in particularly high prescriptions there may be professional limitations in order to ensure an optimal result".
What are the main concerns people have before switching to multifocal?
"The main concern is the financial investment in a product that is supposed to improve quality of life, alongside the knowledge that this is an adaptation process. People are afraid that it will not work for them and will cause disappointment. This is where the adaptation period and warranty come into play, significantly reducing the financial risk and allowing one to try the glasses with peace of mind. Ultimately, for most users, this is a real upgrade in comfort and quality of life".