Did you know that Benjamin Franklin invented bifocal reading glasses? That’s right! One of the Founding Fathers of the United States needed bifocals. But don’t knock bifocals as old-person eyewear! People across most age groups can use these lenses.
What are bifocal reading glasses, anyway? Do you need them? Will you need them? Are they all old-fashioned half-rimmed glasses? I’m here to tackle these questions and more! Let’s get into it.
Have you ever wondered why some people with attention deficit hyperactivity disorder (ADHD) have special eyewear? ADHD glasses aren’t your average specs. They help patients see and feel better by easing the impact of visual issues. It’s pretty cool that a pair of glasses can make such a big difference!
What are progressive lenses? It’s a question many contact wearers ask. Progressive lenses, also known as multifocal lenses or PALs (progressive addition lenses), are a type of lens designed to provide clear vision at multiple distances without the need for separate pairs of glasses.
PALs are primarily used to treat presbyopia, an age-related condition that affects the eye’s ability to focus on up-close objects. Progressive lenses provide a smooth and seamless transition between different prescription strengths within a single lens.
Unlike traditional bifocal or trifocal lenses, progressive lenses do not have visible lines separating the different prescription strength zones. Instead, the lenses gradually change in power from the top (distance vision) to the bottom (near vision), with intermediate powers located in between.
The lens is divided into three parts:
Read on to answer the question of what are progressive lenses, and to learn all about these lenses!
Since being introduced in 1994, daily disposable contact lenses have revolutionized vision correction by offering convenience and flexibility to over 45% of the 40 million contact users in the United States. However, for some, discomfort and eye irritation have raised concerns about the potential of having a contact lens allergy.
Allergic reactions to contact lenses can show up in various ways, impacting comfort, vision, and overall eye health. If you wear daily disposable contact lenses and have noticed ongoing eye discomfort or irritation characterized by dry eye, itching, or increased watering of the eyes, you might wonder if you are allergic to your contact lenses.
This post takes a detailed look at what contact lens allergies are, explores their symptoms, potential causes, and diagnosis, and shares strategies to help manage discomfort stemming from a contact lens allergy.
Contact lens wearers, brace yourself for a potentially painful read. See, your eye doctor will warn you against sleeping with contacts, but nearly one-third of contact lens users have done so.
What happens?
When you wake up, your eyes feel dry, and your lenses must be peeled off your cornea. If you sleep in them just once, you may be okay, but everyone’s affected differently.
Understand this: sleeping with contacts long-term can result in serious complications.
