Understanding Dilation Eye Exams: Purpose, Process, and Precautions
Dilation eye exams are crucial diagnostic tools used by Optometrists to thoroughly examine the health of the eyes. These exams are particularly important in diagnosing and monitoring conditions such as diabetes, glaucoma, and high myopia. In this comprehensive article, we will explore why dilation eye exams are performed, the drops used, their effects on vision, and the physiological changes they induce in the eye. Our Eye Clinic in Southcentre Mall Calgary facilitates these exams on a regular basis. If you are someone in need of a dilated eye exam in Calgary, call to talk to our expert Optometrists and see how they can get you the eye care you need.
The Purpose of Dilation Eye Exams
Dilation eye exams allow Optometrists to gain an enhanced view of the internal structures of the eye, including the retina, optic nerve, and blood vessels. There are many conditions this is important for. The following are the most common ones we see at our eye clinic in Calgary:
Diabetic Checks: Diabetes can affect blood vessels in the retina, leading to diabetic retinopathy. Dilation helps in early detection and management of these changes.
Glaucoma Assessment: Examining the optic nerve under dilation is essential for diagnosing and monitoring glaucoma.
High Myopia Evaluation: In high myopia, there’s a risk of retinal detachment and other retinal abnormalities. Dilation enables thorough examination of the retina.
The Drops Used in Dilation
Tropicamide is commonly used for dilation, typically in a 1% concentration. However, a 0.5% solution is available for individuals with narrower angles or those at risk of angle closure. It’s crucial that patients with a risk of angle closure are assessed and cleared by an eye Doctor before undergoing dilation. This is where you may want to search for one of the top Optometrists in Calgary to ensure nothing gets missed.
Understanding Angle Closure Risks
Angle closure is a condition where the drainage angle of the eye becomes blocked, leading to increased eye pressure. Dilation in such cases must be approached with caution, as it can exacerbate this condition. A comprehensive assessment by an Optometrist is necessary to evaluate the risk.
Side Effects of Dilation Drops
Dilation drops temporarily impair the eye’s ability to focus and increase sensitivity to light. Patients may experience blurred vision, particularly for close objects, and discomfort in bright light. These effects can make activities like reading and driving challenging post-examination. Due to the visual impairment caused by dilation, patients are advised not to drive if they feel uncomfortable with their vision. It’s recommended to arrange for transportation or wait until the effects diminish before driving.
The Physiology Behind Dilation
Dilation drops work by relaxing the muscles that control the pupil’s size, allowing it to expand (dilate). This dilation provides a wider window for the Optometrist to examine the back of the eye. It also enhances the quality of diagnostic scans, such as the Optical Coherence Tomography (OCT) scan, by allowing more light to enter and reflect from the internal structures.
Duration of Dilation Effects
The effect of dilation drops typically begins within 15 to 30 minutes post-administration and can last for several hours. The duration can vary based on the individual’s response to the medication and the concentration of the drops used.
Importance of Regular Eye Exams
Regular eye exams, including dilation, are crucial for maintaining eye health. Optometrists in Calgary and other areas use dilation as part of comprehensive eye examinations to detect and monitor various eye conditions. It’s important to discuss any concerns, such as a family history of glaucoma or diabetes, during these exams. Our Calgary eye clinic’s best Optometrists use these tools on a regular basis to ensure patients get proper care in their eye exams.
Eye Exams in Calgary
In Calgary, many eye clinics and eye care centres, such as those in downtown Calgary or Southcentre Mall, offer comprehensive eye exams, including dilation. The cost of an eye exam in Calgary and Alberta can vary, and some clinics may offer free eye exams under certain conditions. Dilation eye exams can often be covered under Alberta Health Care if they are deemed necessary by a skilled Optometrist. In Alberta we are fortunate that our government covers these costs for individuals that benefit from the extra testing to ensure health eyes.
Conclusion
Dilation eye exams are an essential aspect of comprehensive eye care, allowing optometrists to observe the internal health of the eye accurately. Understanding the reasons for dilation, the process involved, and the necessary precautions can help patients prepare for their eye exams. Whether you're scheduling an eye test in Calgary or elsewhere, discussing dilation with your optometrist can ensure a thorough assessment of your eye health. Don’t hesitate to call our Eye Clinic in Southcentre Mall to chat with one of our Calgary Optometrists and book your next dilation eye exam near you.
