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Cataracts

What’s Your Optometrist Role in Cataract Surgery?

If you’re over the age of 60, there’s a good chance you’ll develop cataracts sometime in the next 20 or so years. While the only effective long-term treatment for cataracts is surgery, it can take years or even decades for a cataract to reach the point where it needs to be surgically removed.

In the meantime, your optometrist can monitor its progression, manage your symptoms and ensure you have the best vision possible. Once your cataract makes it difficult for you to function day-to-day, your optometrist will refer you to an ophthalmologist who will perform eye surgery to replace your eye’s natural lens with a clear artificial lens.

Following your surgery, your optometrist will co-manage your post-op recovery in coordination with your eye surgeon.

Your Optometrist Will Discuss Cataract Treatment Options

A cataract, a clouding of the eye’s natural lens caused by the breakdown of proteins in the lens, leads to progressively blurry vision. So if you’ve been diagnosed with a cataract but aren’t yet ready for surgery, you’ll be having regular contact with your optometrist, who will explain the condition, discuss your treatment options and help manage your symptoms.

Once you’re diagnosed with cataracts, you may want to slow the progression of the condition. Working with an optometrist who knows your personal and family health history as well as your various options for cataract management and surgery is a massive advantage, as your optometrist can give you advice on dietary and lifestyle changes.

The Importance of Regular Eye Tests

Regular eye tests are important for everyone, and particularly if you’ve been diagnosed with cataracts. Because the cloudy areas on your eye lenses will worsen with time, your optometrist will carefully monitor your vision and upgrade your glasses or contact lens prescription as needed. Your optometrist will perform a visual acuity test and other tests to gauge increased sensitivity to light and glare, as well as deterioration in your contrast and colour vision.

When’s It Time for Cataract Surgery?

At some point, your optometrist may determine that your cataracts are severe enough to require surgery. That’s typically when options to correct your vision — updated prescriptions and speciality filters that block glare and increase contrast vision — are no longer sufficient to give you the vision you need.

Your optometrist can recommend an ophthalmologist and provide information about what to expect during cataract surgery. You’ll see your eye surgeon for post-surgery check-ups, and your optometrist for long-term eye care.

If your vision is blurred or if you notice a cloudy patch forming on your eye, you may have developed cataracts. For optimal vision care and cataract management, make sure to schedule an appointment with Dr. Queenie Chau at Balmain Vision in Balmain today.

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Q&A With Our Eye Doctor in Balmain, New South Wales

What’s the best treatment for cataracts?

Although many people use glasses to manage cataract symptoms and improve their deteriorating vision, the only way to really treat cataracts is via surgery. You may want to delay the procedure, but once your quality of life is affected to the degree that it’s difficult to drive or perform everyday tasks, it’s time to have cataract surgery.

Will cataracts return after surgery?

Generally, no. Because the eye’s natural lens is removed and replaced with an artificial one during cataract surgery, a cataract can’t return to that eye. That said, there’s a possibility that a few years after the surgery, you may need a quick laser procedure if the proteins on the lens capsule — the layer that holds the artificial lens in place — becomes cloudy. 

What You Should Know About Night Blindness

If you don’t see well while driving at night, there’s a chance you have night blindness. Night blindness, or nyctalopia, is the inability to see well at night or in dim lighting. It’s not considered an eye disease, but rather a symptom of an underlying problem.

Our optometrist can help diagnose, manage and treat your night blindness so that you can enjoy being out at night again.

Here are 4 things you should know about night blindness:

Causes of Night Blindness

The inability to see well at night can be the result of a condition such as:

Vitamin A Deficiency — Vitamin A helps keep your cornea, the layer at the front of your eye, clear; it’s also an important component of rhodopsin, a protein that enables you to see in low light conditions. Although uncommon in North America, deficiency of this vitamin can induce night blindness.

CataractsA buildup of protein clouds the eye’s lens, leading to impaired vision, especially at night and in poor lighting conditions.

Diabetic RetinopathyDamage to the eyes’ blood vessels and nerves can result in vision loss, including difficulty seeing at night.

GlaucomaThis group of eye diseases is associated with pressure build-up in the eye that damages the optic nerve. Both glaucoma and the medications used to treat it can cause night blindness.

MyopiaAlso called nearsightedness, myopia makes distant objects appear blurry and patients with it describe a starburst effect around lights at night.

KeratoconusAn irregularly shaped cornea causes blurred vision and may involve sensitivity to light and glare which tend to be worse at night.

Retinitis Pigmentosa (RP)A progressive genetic eye disease which can be associated with other diseases, RP leads to night blindness and peripheral vision loss.

Usher SyndromeThis genetic condition causes both hearing loss and vision loss, including night blindness and RP, mentioned above.

Symptoms of Nyctalopia

Since night blindness is a symptom of some serious vision problems, it’s important to get your eyes checked regularly to ensure that everything is in good working order. Contact your optometrist as soon as possible if you notice that you don’t see as well in dim light as you used to, such as when driving at night or when adjusting from being outdoors in the sunshine to being indoors.

Symptoms of Night Blindness Include:

  • Reduced contrast sensitivity
  • Difficulty seeing people outdoors at night
  • Difficulty seeing in places with dim lighting, like a movie theater
  • Trouble adapting to the dark while driving
  • Excessive squinting at night
  • Trouble adjusting from bright areas to darker ones

Treatments for Night Blindness

Your optometrist will want to diagnose the cause of your night blindness in order to treat it. For example, in the rare case of vitamin A deficiency, it can be treated with vitamin supplements and vitamin-A rich foods; myopia can be corrected with glasses or contact lenses. Other conditions may require medications or surgery.

If night blindness is caused by a birth defect, Usher syndrome, or retinitis pigmentosa, low vision aids and devices can help you make the most of your remaining vision.

Prevention

While there is no proven way to prevent night blindness resulting from genetic conditions or birth defects, consuming healthy, nourishing foods and taking certain vitamin supplements may prevent or slow the onset of some eye conditions that cause night blindness.

If you experience poor vision at night or in dim lighting, we can help. Contact Balmain Vision in Balmain to schedule your appointment today.

8 Ways Your Eyes Change With Age

Our eyes and vision change with age. Your eye doctor can monitor these changes — some of which are a natural part of the aging process — and identify any eye conditions or diseases early enough to treat them and prevent vision loss. Read on to learn more about the different types of eye changes one may encounter with age.

Age-Related Eye Conditions and Diseases

Cataracts

If your vision is starting to get blurry, you may be developing cataracts. There are a few types of cataracts, but the one usually caused by aging is known as a “nuclear cataract”. At first, it may lead to increased nearsightedness or even a temporary improvement in your reading vision. But with time, the lens gradually turns more densely yellow and clouds your vision. As the cataract slowly progresses, the lens may even turn brown. Advanced yellowing or browning of the lens can lead to difficulty distinguishing between shades of color, and left untreated, it can eventually lead to blindness. Luckily, cataract surgery, where the cloudy lens is replaced with a clear lens, is an extremely safe and effective treatment option. 

Blepharoptosis

Blepharoptosis or ptosis is a drooping of the upper eyelid that may affect one or both eyes. The eyelid may droop only slightly or may droop enough to cover the pupil and block vision. It occurs when there is a weakness of the eye’s levator muscle that lifts the eyelid. This condition is usually caused by aging, eye surgery, or disease affecting the muscle or its nerve. Fortunately, blepharoptosis can be corrected with surgery.

Vitreous detachment

This occurs when the gel-like vitreous fluid inside the eye begins to liquefy and pull away from the retina, causing “spots and floaters” and, sometimes, flashes of light. This occurrence is usually harmless, but floaters and flashes of light can also signal the beginning of a detached retina — a serious problem that can cause blindness, and requires immediate treatment. If you experience sudden or worsening flashes and increased floaters, see Dr. Queenie Chau immediately to determine the cause.

Other Age-Related Changes

In addition to the above eye conditions and diseases, the structure of our eyes and vision change as we get older. 

Presbyopia

Why do people in their 40s and 50s have more difficulty focusing on near objects like books and phone screens? The lens inside the eye begins to lose its ability to change shape and bring near objects into focus, a process is called presbyopia. Over time, presbyopia, also known as age-related farsightedness, will become more pronounced and you will eventually need reading glasses to see clearly. You may need multiple prescriptions – one prescription to enable you to see up close, one for intermediate distance, and one for distance vision. In that case, people often get bifocals, multifocals or PALs, and they can be combined with contact lenses as well.

Reduced pupil size

As we age, our reaction to light and the muscles that control our pupil size lose some strength. This causes the pupil to become smaller and less responsive to changes in ambient lighting. The result? It becomes harder to clearly see objects, such as a menu, in a low-light setting like a restaurant.  

Dry eye

Our tear glands produce fewer tears and the tears they produce have less moisturizing oils. Your eye doctor can determine whether your dry eye is age-related or due to another condition, and will recommend the right over-the-counter or prescription eye drops, or other effective and lasting treatments, to alleviate the dryness and restore comfort.

Loss of peripheral vision

Aging causes a 1-3 degree loss of peripheral vision per decade of life. In fact, one may reach a peripheral visual field loss of 20-30 degrees by the time they reach their 70s and 80s. While peripheral vision loss is a normal part of aging, it can also indicate the presence of a serious eye disease, like glaucoma. The best way to ascertain the cause is by getting an eye exam. 

Decreased color vision

The cells in the retina responsible for normal color vision tend to decline as we age, causing colors to become less bright and the contrast between different colors to be less noticeable. Though a normal part of aging, faded colors can at times signal a more serious ocular problem. 

Beyond the normal changes that come with age, the risk of developing a serious eye disease, such as age related macular degeneration and glaucoma, increases. Routine eye exams are essential to keeping your eyes healthy. Your eye doctor can determine whether your symptoms are caused by an eye problem or are a normal byproduct of aging. 

If you or a loved one suffers from impaired vision, we can help. To find out more and to schedule your annual eye doctor’s appointment, contact Balmain Vision in Balmain today.