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Lake Erie
Family Eye Care

Occupational Bifocal and Trifocals

Occupational bifocals and trifocals are specialized multifocal lenses created for specific jobs, hobbies or tasks. They are designed for people – generally over 40 – who have developed presbyopia, a condition in which the lens of the eye weakens and it becomes difficult to see objects that are close up. They differ from regular multifocal lenses in that the magnified power areas to see close and intermediate objects are typically larger and positioned in a different area on the lens, according to needs of the designated task.

Occupational bifocal and trifocal lenses are intended for specific tasks and not for everyday use. Here are a few examples:

Double-D Lenses

The most popular type of occupational lens is the Double-D lens. The lens is divided into three segments, with the top designed for intermediate vision, the bottom segment for near vision and the rest for distance. This design is ideal for people who need to see close both when looking down (to read something) and when looking overhead. Professionals that frequently use Double-D lenses are auto mechanics (who have to look overhead when under a car), librarians, clerks or office workers, (who have to look at shelves overhead) or electricians (that are often involved in close work on a ceiling). They are called Double-D lenses because the intermediate and near segments of the lens are shaped like the letter “D”.

E-D Trifocal Lenses

As opposed to Double-D lenses which have the majority of the lens for distance vision, E-D lenses focus on intermediate vision with an area for distance on the top and for near vision on the bottom. These are ideal for individuals who are working at about an arm’s-length away the majority of the time, such as on a multiple computer or television screens, but frequently need to look up into the distance or close to read something. The “E” in the name stands for “Executive Style” which represents the division between the top distance vision lens and the bottom intermediate vision lens which goes all the way across the lens. “D” in the name of the lens is due to the fact that the near section in the bottom of the lens is shaped like a “D”.

Office or Computer Glasses

Multifocal lenses designed for office work provides the largest section with an intermediate lens designated for viewing the computer screen and a smaller area for limited distance vision. You can have progressive or trifocal lenses that incorporate near vision as well.

Golf Bifocals

That’s right, there are even specialized lenses made for golfers! Golfers need to see a wide range of distances during their game from their scorecard, to their ball on the tee, to hole far away to line up their drive. In these lenses, the close segment is small and placed on an outer corner of one lens, to allow for brief close vision but not interfere with the distance game. Usually, right handed golfers will have the lens on the right side and vice versa.

Personalized Lenses

Standard multifocals can be redesigned to adapt to specific tasks or hobbies simply by changing the size, shape or location of the different segments. Many adults over 40 would benefit from having multiple pairs of multifocals to give optimal vision for different tasks or hobbies they enjoy. Note that occupational lenses are made specifically for the task they are designed for and should not be worn full-time, especially while driving.

We hope this finds you all healthy and safe.  We are pleased to announce our re-opening for routine eyecare on Monday May 11, 2020.

As a valued member of our Lake Erie Family Eyecare patient community, we appreciate the trust you place in us and want to inform you about how we are addressing the coronavirus (COVID-19) situation.

Please know that our office is following all recommended guidance from public health authorities, including best practices for hygiene, infection control and medical professional team health. We feel confident in our ability to continue seeing patients and providing primary care according to the tradition of quality care that you have come to expect and deserve.

Our highest priority is to keep all of our patients and staff as safe as possible.

The coronavirus spreads very easily. So, please call us before you come in for an appointment if you have any of these symptoms or risk factors:

 

As a staff we will be wearing masks and request that you do as well for everyone’s safety and to limit the possibility of exposure.  If you do not have a mask, we may be able to provide you with one while our supply lasts.

Please try to complete all necessary paperwork prior to your scheduled apt (can be found on our website..)

We are requesting that only scheduled patients enter the office ( including glasses selection and dispensing/adjustments to help practice social distancing and to keep foot traffic limited as much as possible (if the patient is a minor or requires the assistance of a caregiver, please limit this to one additional person if possible)

For contact lens orders, please call ahead for curbside pickup

We are excited to resume patient care and will continue to closely monitor events in our local community in order to continuously update our policies and protocols as a result of new information.

Thank you for your understanding and please know that we appreciate your trust. We hope you and your family are well and continue to stay healthy & safe during this time.

With kind regards,

Dr. Jennifer Felbinger and the Lake Erie Family Eyecare team.