Cataracts are the leading cause of reversible blindness worldwide, and one of the most common conditions seen in older adults across Edmonton and Alberta. Despite how prevalent they are, many patients do not know what a cataract actually is, what the progression looks like year over year, or what role their optometrist plays alongside the surgeon who performs the procedure.
This guide covers the full picture clearly, including what to expect at every stage from first detection to post-surgical care.
What Is a Cataract?
A cataract is a clouding of the crystalline lens inside the eye. The lens sits behind the iris and pupil and is responsible for focusing light precisely onto the retina. In young healthy eyes, the lens is clear and flexible, changing shape rapidly to maintain focus at different distances. Over time, proteins within the lens gradually break down and clump together, causing the lens to become progressively hazy. The resulting cloudiness is the cataract.
Cataracts develop slowly and painlessly. Most people do not notice them until they begin to affect daily activities like driving, reading, or recognizing faces in certain lighting conditions. By age 80, the majority of Canadians have cataracts to some degree.
Symptoms That Suggest Cataracts May Be Developing
Blurry, hazy, or foggy vision that does not fully correct with a new glasses prescription is one of the most common early presentations. Increased sensitivity to glare, particularly from oncoming headlights or bright sunlight, is another. Halos around lights at night, fading or yellowing of colours, and the need for significantly more light to read comfortably are all consistent with cataract development.
Frequent prescription changes, particularly a shift toward more nearsightedness, can also indicate that the density of the lens is changing. An interesting phenomenon in early cataracts is a temporary improvement in near vision sometimes called second sight, where the increased lens density briefly boosts reading ability before eventually giving way to progressive blurring.
Double vision in one eye, meaning double vision that persists when you close the other eye, can also be related to cataract formation affecting the optical clarity of the lens.
Stages of Cataract Development
In the early stage, the lens has begun to cloud but vision is not yet significantly affected in daily life. This is when cataracts are most commonly detected during a comprehensive eye exam in Edmonton through dilated examination and imaging. Patients at this stage are monitored rather than immediately referred for surgery.
In the moderate stage, vision is noticeably affected, particularly in challenging lighting. Patients often notice increasing difficulty with night driving, glare from headlights, and reading fine print. Glasses may help to a degree but can no longer fully compensate for the opacity in the lens.
In the advanced stage, the lens is extensively clouded and vision may be severely reduced. Vision may be described as looking through a frosted window. Surgical intervention is typically indicated at this stage, and the procedure is highly effective when performed by an experienced ophthalmologist.
The Role of Your Edmonton Optometrist in Cataract Care
Eyes On Optometry provides comprehensive cataract assessment and pre/post surgical care that plays a meaningful role throughout the full cataract journey, not just in the operating room.
Detection and monitoring is where it starts. Your optometrist detects cataracts during your annual exam and monitors their progression over time, documenting changes with imaging and advising when surgical referral is appropriate. Not every cataract requires immediate surgery. Your optometrist guides the timing based on how significantly the cataract is affecting your quality of life and vision function.
When surgery is indicated, your optometrist refers you to a trusted ophthalmologist and provides the clinical documentation and measurements needed for the surgical assessment. The two work in parallel on your behalf.
Post-surgical care is where many patients underestimate their optometrist’s role. After cataract surgery, your optometrist monitors healing, checks the intraocular lens position, manages any post-operative inflammation or pressure, and updates your glasses prescription once your vision has stabilized. Most patients need a new prescription within four to six weeks of surgery. Returning to your Edmonton optometrist promptly after surgery ensures any complications are caught early and your visual recovery is as complete as possible.
Risk Factors for Cataracts
Age is the primary factor. Cataract development accelerates after 60 and is nearly universal by the mid-eighties. Diabetes chronically elevates blood sugar, which accelerates lens protein breakdown. Patients with diabetes should discuss this added risk at their regular diabetic eye exam in Edmonton. Cumulative UV-B radiation contributes to lens protein damage over a lifetime. Consistently wearing UV400 sunglasses outdoors is a practical protective measure. Smoking increases oxidative stress throughout the body including the lens. Prolonged corticosteroid use, previous eye trauma, and prior intraocular surgery can all accelerate cataract formation.
Questions Edmonton Patients Ask About Cataracts
Q: How do I know if it is time for cataract surgery?
The decision is based on how significantly the cataract is affecting your daily life rather than on a specific measurement threshold. When you can no longer drive safely at night, read comfortably, or perform your daily tasks despite an updated glasses prescription, the conversation about surgical timing is appropriate. Your optometrist will make a referral when the clinical findings support it and your quality of life has been meaningfully affected.
Q: Is cataract surgery safe?
Cataract surgery is one of the most commonly performed and safest surgical procedures in Canada. Serious complications are rare. The procedure typically takes 15 to 20 minutes per eye and is performed as a day surgery under local anaesthetic. Most patients notice significant visual improvement within days of surgery, with full recovery taking a few weeks.
Q: Will I still need glasses after cataract surgery?
This depends on the type of intraocular lens implanted and your specific circumstances. Standard monofocal lenses correct vision at one distance. Many patients still need reading glasses after surgery with a standard lens. Premium intraocular lenses designed to address both distance and near vision are available at additional cost. Your ophthalmologist will discuss the lens options before surgery. Your Edmonton optometrist provides the final prescription assessment and glasses fitting after the eye has healed.
Q: Can cataracts come back after surgery?
The natural lens that formed the cataract is removed during surgery and replaced with an artificial lens, so cataracts cannot recur in the replaced lens. However, a percentage of patients develop posterior capsule opacification, sometimes called a secondary cataract, where the membrane behind the artificial lens becomes cloudy. This is treated quickly and easily with a brief laser procedure in the ophthalmologist’s office.
Q: My optometrist mentioned I have early cataracts. Should I be worried?
Early cataracts are very common and do not require immediate action. Your optometrist will monitor their development at each annual exam and advise you when the changes are becoming significant enough to affect your vision meaningfully. In the early stages, updated glasses often adequately manage any visual changes. The key is maintaining your annual exam schedule so nothing is missed.
Book a Cataract Assessment in Edmonton
If you are over 60, noticing increasing glare or blurring that your glasses are not fully correcting, or if cataracts have been mentioned at a previous exam, now is a good time for a current assessment. Contact Eyes On Optometry to book your cataract assessment in Edmonton. Our adult and senior eye exams include full retinal and lens assessment with the diagnostic technology to detect and document cataract development accurately.