Why Is My Left Eye Blurry with Contact Lenses? Common Issues Explained

Contact lenses

I have been wearing contact lenses for six or seven years.
Four months ago, I got a new pair of lenses.
There are no issues with my right eye, but when I wear the lens in my left eye, everything appears blurry.
I have tried several different lenses, but the problem persists.
Sometimes I have to blink very hard, and occasionally, right after putting the lens in, my vision is clear, but after about five or six hours, my left eye starts to get blurry again.
What could be causing this? Could it be related to the fact that I often answer calls with my left ear, affecting my vision? Thank you.

Xiao Ling, 20~29 year old female. Ask Date: 2002/10/25

Dr. Wang Zhangji reply Ophthalmology

Hello, Xiaoling! If your vision improves after blinking hard, it may be due to your contact lenses being too tight.
This tightness could be caused by the lenses being too large or the base curve being too small.
However, there are many other reasons for poor vision, including electromagnetic waves from mobile phones.
It is best to visit a clinic to understand the true cause in detail.
Wishing you and your family safety and happiness.
Sincerely, Dr.
Wang Zhangji, Ophthalmology, Taoyuan Hospital, Department of Health, Executive Yuan.

Reply Date: 2002/10/25

More Info

Experiencing blurry vision in one eye while wearing contact lenses can be frustrating and concerning. There are several potential reasons for this issue, particularly when it involves a long-term contact lens user like yourself. Here, we will explore some common causes and considerations that may help clarify your situation.

1. Contact Lens Fit and Type: One of the most common reasons for blurry vision in one eye is an improper fit of the contact lens. If the lens does not sit correctly on the cornea, it can lead to discomfort and visual disturbances. Additionally, different types of lenses (e.g., toric lenses for astigmatism) may be necessary for each eye if there are differences in prescription. If you have recently changed your lenses, it’s possible that the new lenses are not suitable for your left eye.

2. Dry Eye Syndrome: Dry eyes can significantly affect vision clarity, especially when wearing contact lenses. If your left eye is more prone to dryness, it may lead to blurred vision after several hours of wear. Symptoms of dry eyes include a gritty sensation, redness, and fluctuating vision. Using lubricating eye drops specifically designed for contact lens wearers can help alleviate this issue.

3. Lens Deposits: Over time, contact lenses can accumulate deposits from tears, proteins, and lipids, which can affect vision. If your left lens is more prone to these deposits, it may lead to blurriness. Regular cleaning and proper lens care are essential to maintain clear vision.

4. Corneal Health: The health of your cornea can also impact your vision. Conditions such as corneal abrasions, infections, or irregularities can lead to blurry vision. If you experience persistent blurriness, discomfort, or redness, it is crucial to consult an eye care professional for a thorough examination.

5. Visual Fatigue: If you are frequently using your left ear to answer calls or looking at your phone, it may lead to visual fatigue, especially if you are not maintaining proper posture or taking breaks. This can cause temporary blurriness due to strain on the eye muscles.

6. Underlying Eye Conditions: Conditions such as astigmatism, cataracts, or other refractive errors can also cause one eye to appear blurrier than the other. If your left eye has a different prescription or underlying condition compared to your right eye, it may contribute to the blurriness you are experiencing.

7. Environmental Factors: Exposure to dry air, smoke, or allergens can exacerbate dryness and irritation in the eyes, leading to blurred vision. If you are in an environment that contributes to these factors, it may be worth considering changes to your surroundings.

In conclusion, the blurry vision in your left eye while wearing contact lenses could be due to a variety of factors, including lens fit, dry eye syndrome, lens deposits, corneal health, visual fatigue, underlying eye conditions, and environmental influences. It is essential to address these issues with your eye care provider, who can conduct a comprehensive eye examination and provide tailored recommendations. Regular check-ups and proper lens care are crucial for maintaining optimal eye health and clear vision. If the problem persists, do not hesitate to seek professional advice to ensure your eyes remain healthy and your vision clear.

Similar Q&A

Understanding Blurry Vision with Contact Lenses: Causes and Solutions

Hello Doctor, I have over 200 degrees in my left eye (contact lens prescription -2.25) and over 400 degrees in my right eye (contact lens prescription -4.00). I purchased contact lenses at an optical shop yesterday, and after trying them on today, I noticed that my vision is some...

Dr. Chen Anping reply Ophthalmology
Hello, blurred vision can be caused by various factors. These include incorrect prescription, unsuitable contact lenses, or adaptation issues with the eyes. However, to determine the exact cause, it is recommended that you consult an ophthalmologist or optometrist for an examinat...

Understanding Evening Blurriness: Causes and Solutions for Eye Issues

I would like to ask... Recently, my vision becomes blurry in the evening. Why is that? I wear contact lenses, but my vision is fine in the morning and afternoon; it only starts to get blurry in the evening... I'm a bit worried... Can you tell me why? When I switch to glasses...

Dr. Xie Wenzhen reply Ophthalmology
Hello, sir: Thank you for your inquiry. I would like to address your question and provide the following recommendation: This condition may raise suspicion of corneal edema due to prolonged contact lens wear. It is advisable to visit our ophthalmology clinic for further examinatio...

Understanding Blurry Vision with Contact Lenses: Causes and Solutions

I am 17 years old and have significant disparity between my eyes (left eye: -250, right eye: -400). I have been wearing orthokeratology lenses for over three years, and I had a new pair fitted in April of this year. My vision has been fine since then, but recently in July, I star...

Dr. Cai Wenyuan reply Ophthalmology
It is recommended to seek medical examination.

Understanding Vision Issues: Tips for Contact Lens Wearers

Hello, Doctor Gao. My left eye has a lower prescription than my right eye, but I recently noticed that when wearing contact lenses with the same prescription, my left eye does not see as clearly as my right eye; it appears less sharp, even for near objects. Could this be related ...

Dr. Gao Pilin reply Ophthalmology
Hello: It is normal for there to be a difference in vision between the two eyes. The accuracy of the contact lens prescription can also affect vision. The prescription for the left eye may be too strong; it might only require -7.00 diopters. Please refer to: https://bit.ly/2TLBgh...