articles

Multifocal Contact Lenses

In the ever-evolving world of vision correction, multifocal contact lenses have emerged as a game-changer for individuals seeking a seamless solution to address their presbyopia. As you navigate through life's various stages, your eyes may undergo changes that can impact your ability to focus clearly on objects at different distances. Multifocal contact lenses offer a convenient and effective way to combat this challenge, providing you with a versatile and comfortable option for correcting your vision.
 

What Are Multifocal Contact Lenses?

 

Multifocal contact lenses are specialized lenses designed to correct presbyopia, a condition that typically occurs as you age, making it difficult to focus on near objects. Unlike traditional single-vision lenses that correct either near or distance vision, multifocal contact lenses incorporate multiple prescriptions into a single lens. This innovative design allows you to enjoy clear vision at various distances, eliminating the need for separate reading glasses or bifocals.
 

How Do Multifocal Contact Lenses Work?

 

Multifocal contact lenses employ advanced optical technologies to provide seamless vision correction. These lenses feature distinct zones or concentric rings that correspond to different prescriptions for near, intermediate, and distance vision. As your eyes move and focus on objects at varying distances, the appropriate zone of the lens comes into play, ensuring a clear and comfortable visual experience.

There are two main types of multifocal contact lens designs:

  • Simultaneous Vision Design: In this design, the lens incorporates multiple prescriptions simultaneously, allowing your eyes to utilize the appropriate zone based on the viewing distance. This design can take some time to adjust to, as your brain learns to interpret the different visual inputs.

  • Alternating Vision Design: Also known as "segmented" or "translating" lenses, these lenses have distinct zones for near and distance vision. As you move your eyes or shift your gaze, the appropriate zone is positioned in front of your pupil, providing the necessary correction.


 

Eye Conditions That Multifocal Contact Lenses Can Treat

 

Multifocal contact lenses are primarily designed to address the following vision-related conditions:
 

  • Presbyopia: As you age, the natural lenses in your eyes lose flexibility, making it challenging to focus on nearby objects. Multifocal contact lenses can correct this age-related farsightedness, allowing you to see clearly at all distances.

  • Myopia (Nearsightedness): If you struggle to see distant objects clearly, multifocal contact lenses can incorporate a prescription to correct myopia, while also providing near and intermediate vision correction.

  • Hyperopia (Farsightedness): For individuals with farsightedness, multifocal contact lenses can offer a solution by incorporating a prescription to improve distance vision, along with near and intermediate vision correction.

  • Astigmatism: Some multifocal contact lenses are designed to correct astigmatism, a condition caused by an irregularly shaped cornea or lens, resulting in blurred or distorted vision.


Hybrid Contacts

Contact lenses have become a popular choice for individuals who want to correct their vision without the hassle of wearing glasses. Traditional contact lenses have been around for decades, offering a convenient alternative to eyeglasses. However, advancements in technology have given rise to a new type of contact lens – hybrid contacts.
 

What Are Hybrid Contacts?

 

Hybrid contacts are a revolutionary type of contact lens that combine the best features of both soft and rigid gas permeable (RGP) lenses. The rigid center corrects vision by providing precise clarity, while the soft skirt offers comfort and stability. This unique combination allows for the benefits of both types of lenses to be experienced simultaneously.
 

The central RGP lens of a hybrid contact is made from a rigid material that allows oxygen to pass through to the cornea, ensuring ample oxygen supply to the eyes. This ensures the overall health of the eyes, preventing dryness and reducing the risk of complications associated with limited oxygen flow


Eyelid Hygiene

Eyelid hygiene is an essential aspect of maintaining optimal eye health. Your eyes are sensitive organs that require proper care and attention. Neglecting eyelid hygiene can lead to various problems, including dry eye.
 

Recognizing the Symptoms of Eyelid Problems

 

It is crucial to recognize the symptoms of eyelid problems to seek timely treatment and prevent further complications. Common symptoms of eyelid issues include redness, swelling, itching, irritation, crusting or scaling of the eyelids, sensitivity to light, and a sensation of something in the eye.
 

The Importance of Eyelid Hygiene in Maintaining Eye Health

 

 

Maintaining proper eyelid hygiene is essential for overall eye health. Regularly cleaning your eyelids helps remove debris, bacteria, and excess oil, preventing infections and inflammation. It also promotes the proper functioning of the meibomian glands, ensuring an adequate supply of tears to keep your eyes moisturized. By incorporating eyelid hygiene into your daily routine, you can significantly reduce the risk of developing dry eye and other eye-related problems.


Optomap

Optomap is an innovative new technology that gives eye doctors the ability to perform ultra-wide retinal imaging that is far superior to what can currently be achieved using conventional retinal imaging options. In contrast to conventional retinal imaging, Optomap captures at least 50% more of the retina in a single capture, and with Optomap’s multi-capture function, up to 97% of the retina can be viewed. This gives eye care professionals greater opportunity to monitor the health and condition of patient vision.
 

Why is Optomap important?

Optomap is another great preventative eyecare technology tool. By allowing your eye doctor to have a comprehensive view of your retina, they will be able to detect any developing eye diseases early on, before they have a detrimental impact on your vision and day to day life. Not only can Optomap detect eye conditions such as retinal holes, retinal detachment, macular degeneration and diabetic retinopathy, but it can also be used to identify some general health conditions such as cardiovascular disease, stroke and cancer.
 

What to expect from Optomap scanning

Optomap is a fast, painless and non-invasive procedure that is suitable for patients of all ages, even children and pregnant women. Many patients require their eyes to be dilated ahead of the scan and will be given eyedrops which will widen their pupils and make it easier for the camera to see the structures inside the eye. Pupil dilation is painless, but patients may feel more sensitive to light both during their Optomap scan and afterwards for up to 24 hours. You may also have slightly blurred vision for a few hours. Once your eyes are dilated, you’ll be sat down and asked to look into a small device that will take the pictures of your retina. A short flash of light will let you know that the image has been taken, and the entire imaging is over in just a few seconds. The results will be sent digitally to your eye doctor who will then evaluate them. The results will also be stored on your personal optical record for future information.  
 

If you would like more information about what is involved in Optomap, or to schedule an appointment for this effective screening technology, please contact our eyecare team.


Urgent Eye Care

 

Urgent eye care encompasses prompt evaluation and treatment of sudden or severe eye-related issues, including foreign object removal, chemical exposure, corneal abrasions, sudden vision loss, eye trauma, acute glaucoma, chemical burns, and eye infections. Seeking immediate professional attention from an optometrist is vital to prevent further damage and preserve vision.
 

Common Eye Emergencies or Urgent Eye Care Appointments

 

Eye emergencies can manifest in various forms, and it is essential to be able to identify them quickly. Some common eye emergencies include:
 

  • Foreign Object in the Eye: Particles, debris, or small objects can become lodged in the eye, causing pain, redness, tearing, and potential damage to the eye's surface.

  • Corneal Abrasions or Scratches: Injuries to the cornea, such as abrasions or scratches, can cause severe eye pain, light sensitivity, and a feeling of something in the eye.

  • Sudden Loss of Vision: Any sudden and unexplained loss of vision requires immediate attention to determine the underlying cause and initiate appropriate treatment.

  • Eye Trauma or Blunt Force Injury: Injuries to the eye from impact, trauma, or accidents can lead to serious complications, including retinal detachment, hemorrhage, or intraocular foreign bodies.

  • Chemical Burns: Exposure to caustic substances or chemicals can cause serious damage to the eyes, resulting in pain, redness, and potential vision loss.

  • Eye Infections: Infections such as conjunctivitis (pink eye) can cause redness, discharge, and discomfort in the eyes.
     

Recognizing these symptoms and seeking urgent care can prevent further complications.
 

The Importance of Basic Red Eye Exams in Urgent Care

 

Red eye exams are a fundamental part of urgent eye care. They help identify the cause of redness and determine the appropriate treatment. Basic red eye exams involve a comprehensive evaluation of the eye, including examining the eyelids, conjunctiva, cornea, and iris. These exams aid in the diagnosis and treatment of various conditions, such as conjunctivitis, uveitis, dry eyes, and corneal abrasions.


Visual Field

Visual field testing is an important part of most standard comprehensive eye exams. Also sometimes known as perimetry testing, Visual field testing is a method to measure the entire scope of vision of an individual, including their peripheral/side vision.
 

The importance of visual field testing

Visual field testing is one of the most effective diagnostic treatments in the detection of glaucoma. This is because when patients are affected by glaucoma, it is usually the peripheral vision that is affected by their condition first. However, it can also be used to detect central or peripheral retinal diseases, eyelid conditions such as drooping, optic nerve damage and conditions that affect the visual pathways from the optic nerve to the area of the brain where this information is processed into vision.
 

Visual field testing is also an important part of monitoring for people who are considered to be at risk for vision loss from disease and other problems, including those who have been diagnosed with the following:

  • Multiple sclerosis

  • Hyperthyroidism

  • Pituitary gland disorders

  • Central nervous system problems (such as a tumor that may be pressing on the brain)

  • Stroke

  • Diabetes

  • High blood pressure
     

What to expect from visual field testing

There are a variety of methods that can be used to perform visual field testing, including:
 

Static automated perimetry. This is where a machine is used to quantify how well the patient is able to detect flashing lights of varying size and brightness in different areas of their visual field, while they concentrate on a central point. The patient responds by pushing a button when they see the light.

Kinetic perimetry. This involves points of light that are fixed in size and intensity and are presented along the patient’s peripheral vision, before being gradually moved inwards to determine their field of vision. 

Visual field testing is non-invasive, painless and doesn’t require patients to have their eyes dilated. The results, which are usually presented in a series of charts, are digital and sent directly to your eye doctor for interpretation. Depending on the outcome of your results, you may be recommended for further diagnostic testing which could include blood tests. If you have been diagnosed with glaucoma, you will probably be recommended to have several visual field tests each year, which will help your eye doctor to monitor the progression of your condition and recommend treatments to slow it.

If you would like more information about visual field testing, or if you have concerns about your peripheral vision, please don’t hesitate to schedule an appointment with our experienced and knowledgeable eyecare team today.


Lens Technology

Thanks to the advancement of lens technology, glasses lenses are no longer a single, one size fits all solution. There are a variety of different lens types that can be used in glasses, giving patients greater flexibility and control over their vision than ever before.
 

Single Vision Lenses

Also known as monovision lenses, these lenses are designed to correct the wearer’s vision at just one distance, and have a single prescription covering the entire surface of the lens. They are most often recommended for people who are either nearsighted (myopia) or farsighted (hyperopia) and who need glasses for a specific activity, such as driving or reading.
 

Progressive Lenses

Progressive lenses are multifocal lenses that can correct a patient’s vision at different working distances, ranging from far distance to reading distance. However, rather than designating different areas on the lenses for different distances with visible lines separating them, progressive lenses have a gradual change so that the wearer can smoothly transition from one lens power to another.
 

Bifocal and Trifocal Lenses

As you may have guessed from the name, bifocal and trifocal lenses have either two or three lens powers depending on which type you choose. Bifocal lenses support distance vision in the top half of the lens, and near vision in the lower half. Trifocal lenses support distance vision in the top third of the lens, intermediate vision in the middle segment and near vision in the bottom third. Whichever variety you choose, you will see visible lines separating each segment.

Bifocal and trifocal lenses are recommended for patients who are near or farsighted, and those who develop presbyopia, which is the natural hardening of the eye lens, that occurs as we get older. Presbyopia makes it harder for the lens of the eye to adapt to focus at different distances.
 

Multifocal Lenses

Multifocal lenses are the alternative name given to bifocal, trifocal and progressive lenses.
 

Computer Lenses

Computer lenses are prescription lenses that are specifically designed to be worn when doing computer work. This is because they place the optimum lens power for viewing your computer screen exactly where you need it – which is closer than intermediate vision, but further away than reading material is usually held. Wearing computer lenses can significantly reduce the negative effects caused by the high visual demands of computer work, including blurred vision, redness, dry eyes, double vision and dizziness.
 

Transition Lenses

Also known as photochromic lenses, transition lenses are a special type of lens that darken when in the sunlight and lighten when in softer light or the dark. This versatility gives the wearer the convenience of being able to move between different environments without needing to change their glasses. This makes them extremely cost effective and prevent the wearer from needing to take multiple pairs of glasses out with them. Transition lenses also filter out many of the harmful UV rays that are emitted from the sun, helping to keep eyes healthy too. They are ideal for people who spend a lot of time going between inside and outside, or who work outside in varying weather conditions.
 

Blue Light Lenses

Blue light lenses are specially crafted lenses that contain filters that block out much of the artificial blue light that is produced by digital devices like computers, smartphones and tablets. Natural blue light is actually good for balancing our sleep-wake cycle, boosting our mood and enhancing our cognitive abilities so that we can function better day to day. However, too much blue light, especially from artificial sources, can have the opposite effect. Many people who fail to use blue light lenses can go on to develop digital eye strain, which produces symptoms like eye fatigue, dry eyes, blurred vision, headaches and more. Blue light lenses are recommended for anyone who spends a lot of time working on a digital device.
 

Polarized Lenses

Polarized lenses are used to reduce eyestrain and improve the quality of vision in patients on especially sunny days, making them ideal for anyone who spends a lot of time outdoors. They can do this because they have a special filter that blocks some of the light from passing through the lens. Vertical light is allowed to pass through, while horizontal light, such as that which bounces off of water and can be blinding, is blocked. Polarized lenses are most often used in sunglasses since they are worn outdoors, and the wearer also needs to protect their eyes from UV damage.

Still have questions about which lens is right for you? Contact us to schedule an eye exam or an appointment to evaluate your individual needs.


Optos

As technology continues to advance, so does the field of the optometric industry. The development of innovative tools and techniques has allowed for more accurate and comprehensive examinations. One such technology is Optos, a revolutionary system that utilizes ultra-widefield retinal imaging technology to provide optometrists with a detailed view of the entire retina.
 

How Does Optos Work?

 

Optos technology is based on the principle of ultra-widefield retinal imaging, which allows for a wider and more detailed view of the retina compared to traditional imaging techniques. The Optos system consists of a specialized camera that captures high-resolution images of the retina using scanning laser ophthalmoscopy (SLO) and optical coherence tomography (OCT) technologies. SLO provides a wide-field view of the retina, while OCT allows for cross-sectional imaging, providing valuable insights into the various layers of the retina.
 

The Optos camera is designed to capture images through a process called optomap, which captures up to 200 degrees of the retina in a single image. This wide-field view provides optometrists with a comprehensive picture of the retina, enabling them to detect abnormalities that may not be visible with traditional imaging techniques. The optomap image can be instantly viewed and analyzed by your eye doctor, allowing for a more efficient and accurate diagnosis.
 

Common Eye Conditions Detected by Optos

 

Optos technology has the capability to detect a wide range of eye conditions, including but not limited to, diabetic retinopathy, macular degeneration, glaucoma, and retinal tears or detachments. Diabetic retinopathy is a condition that affects individuals with diabetes, causing damage to the blood vessels in the retina. Optos can capture detailed images of the retina, enabling optometrists to detect any signs of diabetic retinopathy and initiate appropriate treatment.
 

Macular degeneration is another common eye condition that can be detected using Optos. This condition affects the macula, the central part of the retina responsible for sharp, central vision. Optos allows for a comprehensive view of the macula, identifying any changes or abnormalities that may indicate the presence of macular degeneration.
 

Glaucoma, a condition characterized by damage to the optic nerve, can also be detected using Optos. The wide-field view provided by Optos allows for a thorough examination of the optic nerve and the surrounding structures, facilitating early detection and intervention.
 

Finally, Optos technology is particularly effective in detecting retinal tears or detachments. These conditions can lead to sudden vision loss and require immediate medical attention. Optos allows for a comprehensive view of the retina, identifying any signs of retinal tears or detachments and initiate prompt treatment.


Optikam

Eye care professionals use Optikam’s technology to capture more than 3 million eyewear measurements every year. The OptikamPad iPad app is a total dispensing solution that enables eye care professionals to successfully assist patients at all stages of the eyewear dispensing process, providing them with a unique and custom patient experience.

 

Optikam Posture Devise (OPD)

You may be surprised to learn that wearing glasses can and likely will affect your posture. Glasses lenses are most accurate when you look directly through their center. This means if your glasses are sitting too low or have slipped down your nose, you may find that you are subconsciously tilting your head back and this can affect your overall posture.

 

Optikam’s OPD measurement device is a cutting-edge tool that obtains eyewear measurements that take into account how the frame will be worn by patients, enabling the fit to be customized to their individual parameters. The ten measurements taken into account when determining each patient’s position of wear include:

  • Monocular pupillary distance

  • Multifocal seg heights

  • Pantoscopic tilt

  • Rear vertex distance

  • Wrap (face form tilt)

  • Near pupillary distance

 

This results in frames that not only look fantastic, but that also fit perfectly, remaining both comfortable and stable on the face without you needing to adopt an unnatural posture. The measurements obtained by the Optikam OPD measurement tool are immediately visible on your eye doctor’s tablet so that they can recommend which alterations to the frames are needed to ensure that the frames fit with precision and gives you the best visual experience.

 

Benefits of OptikamPad and Optikam OPD

Traditionally, the process of a comprehensive eye exam, choosing frames and fitting glasses requires fairly close contact with your eye doctor or other eye care professionals. However, with social distancing being a new process variable, many patients are looking for more virtual options. Fortunately, OptikamPad makes it possible for optical stores to dispense eyeglasses with minimal human contact. This is because the OptikamPad can take measurements from a further distance or even through plexiglass screens. It can even be placed on a stand and the app operated using a Bluetooth mouse, putting even greater distance between your eye care professional and you. 

If you would like to find out more about Optikam OPD and OptikamPad, our knowledgeable team would be delighted to help. Please contact us with any questions or to schedule an appointment.


EnChroma Lens Technology

If you find it difficult to tell colors apart, you may be color blind. Color blindness, or color deficiency, is estimated to affect around 8% of men and about 1% of women, but for those affected, it can significantly impact the quality of their day-to-day life. Contrary to popular belief, being color blind doesn’t mean that you can’t see any color at all. Instead, patients simply struggle to differentiate between certain colors. The vast majority of people who are color blind find it impossible to tell the difference between varying shades of red and green. You may hear this referred to as red-green color deficiency. However, this doesn’t only mean that they mix up red and green. They can also mix up colors that have some green or red light as part of their whole colors, for example purple and blue. This is because they are unable to see the red light that forms part of the color purple. 


As you can probably imagine, this type of visual impairment can be a problem for things like traffic lights, taking medications and even looking at signs and directions. For example, someone who is color blind may find that the green on a traffic light may appear white or even blue.
 

EnChroma lens technology is specifically designed to counteract red-green color deficiency and enable patients to better identify the difference in these colors or shades. They do this by selectively filtering out the red and green wavelengths of light at the exact point where the color sensitivities overlap before hitting the retina, creating far greater contrast between the colors so that the patient can distinguish between them successfully. Most cases of color blindness respond well to EnChroma’s innovative spectral lens technology, giving patients the ability to experience life in bright, vibrant technicolor.


EnChroma lenses are made from leading edge, Trivex material, and this helps to give them the best possible quality and clarity of vision. These lenses are also extremely light, strong and offer patients 100% protection against UV light, helping to keep your eyes healthy as well as improving your vision.


If you or someone you know is color blind or color deficient and could benefit from EnChroma lenses, contact us today to learn more about how they can help!

 


Helpful Articles