Bad vision after cataract surgery
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- Опубликовано: 14 июл 2024
- Cataract surgery impaired vision reasons
0:49 - the contrast sensitivity loss, testing conditions and pupil size
2:55 - residual astigmatism after the cataract surgery
4:09 - tear film quality and dry eye syndrome
5:28 - underestimated IOL vision quality with different IOL types, refractive error, defocus curve shift and far vision quality with diffractive IOLs
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My name is Alex, and my Eye surgery explained channel - all about vision, new vision recovery technologies, eye deceases, and more.
My goal is to help peoples, having vision problems, from low myopia to cataract, glaucoma, or age-related macular degeneration to get valuable information.
I will talk about deceases or eye conditions and treatment options available up to date, explained not by a doctor, means in simple words, and truthfully by an expert in the ophthalmic industry.
Ask your questions below, and I will try to help!
I have created that channel as my passion to help peoples to get the maximum of their sight.
Feel free to ask about IOL selection criteria, IOL specifications and professional suggestion from experienced clinical application specialist.
Please note, that I am not a doctor, and your health conditions and any actions related to that has to be discussed with your doctor only.
#cataract #eye #surgery #iol #EyeSurgeryExplained
👉 Uncover IOL truth at IOL-adviser.com 👈
Thank you very much for your information. The best expert in IOL consulting.
many thanks for your feedback!
My vision is better indoors in artificial light with Tecnis Synergy IOL, but very bad in sunlight conditions. I showed the optician who examined my eyes by checking my vision with outdoor lighting. Street signs across the road are blurry, but in the examination room I can read the first few lines, which are much clearer. I don't know why optometrists and ophthalmologists don't test vision in different lighting conditions. It's only when patients report back to them to complain of visual disturbances after IOL exchange or after prescription glasses.
sad to hear.. it might be related to pupil decentration or lens position vs pupil. and yes, industry are not rutinely checking vision at different conditions. some doctors are more accurate and passionate, some doing standard things. I wish you find a solution with your doctor
The following tests were performed for my eye measurement prior to my cataract surgery:
IOL Master 700 Biometry
Nidek AI Scan Biometry
Corneal Labelling and Mapping
Vector Analysis
Ziess Atlas Toppgraphy
Ziess Atlas Aberrometry
Nidek Keratometry
Laser surgery office
Corneal Tomography
Corneal Topography
Epithelial Optical Coherence Tomography
Residual Astigmatism Analysis
Procedure performed:
Refractive Cataract Surgery
Advanced Technology Refractive Monofocal Toric Intraocular lens to Correct Optical Errors
Post surgery my eye pressure went to 31mmHg from 17mmHg.
The surgeon told me I have Glaucoma when prior to surgery my eye pressures were fine.
I have been wearing glasses since my teens and had regular eye exams and had never been told I had glaucoma.
Now I have to use drops for life to control the eye pressure or the other option my ophthalmologist suggested was laser surgery, with no guarantee of correction.
Also my vision is a bit blurred after almost 6 weeks.
Not sure if I should seek a second opinion…
Sorry to hear that you have blurred vision. What would you like to know?
Honestly there might be number of reasons for that.
ps: glaucoma is not a pressure. it’s a ganglion cells degradation and the pressure is one of the possible markers; and one of the influence points, but not the single reason.
@@iol-adviser, thank you for your response.
I’ve never been diagnosed with Glaucoma or high ocular pressures prior to my cataract surgery. I was able to see clearly up close without glasses until my vision became cloudy because of the cataract in one eye.
Thankfully I didn’t need cataract surgery in my other eye, I can still manage too see properly but hate the idea of having to put drops in my eyes for life and the side effects of doing that.
I will not feel confident going for my other eye cataract surgery, when the time comes.
Also were all those tests performed prior to my surgery absolutely necessary?
@@truthteller6932 I believe that the best way not is to look for second opinion.
ps: taste seems reasonable
@@iol-adviser , thank you again for your advice. The surgeon I went too is highly recommend. One of the top surgeons in the city but he is too busy and rushed.
that's the most common problem - lack of time and inability or lack of willingness to communicate with the patient. That's why I'v started my project.
I had Eyhance Toric II 3 weeks ago. I wish I never had it done. Lost my distance near perfect vision. Now I have blurry,double vison. Don't get the surgery unless your in bad shape.
Sorry to hear that. So you have great near but bad far, correct?
What was your refraction before and what you have discussed with the doctor as a result?
@@iol-adviser Don't know the refraction but he installed Eyhance diu 150 in one and the other diu 225. Before I had great distance vision and needed readers for inside dimmer light . Now my distance is blurred distance from about 30 ft to horizon. Images or signs etc have a shadow double look. Reading inside is a bit better. It's been 3 weeks since first eye 2 weeks since second eye. No change in vision since. If I look thru adjusted binoculars my distance is clear. My doctor said to wait to see if it gets better. I regret doing this because now I fear having to have glasses for driving or distance which I didn't need at all before. And the cost of fixing them so no glasses is out of my means. Plust the $3000 us I paid for Eyhance. Now were did I read ther is a good chance of Refractive surprise in all the videos or reading I did before.
Alex, it is my understanding that accurate measurements of the eye needing surgery need to be taken to come up with best IOL calculations. If cataracts prevent clear views of posterior segments, could that lead to incorrect calculations and not so good vision after the surgery? If doctors cannot see posterior pole/segment, how do they arrive at what IOL parameters should be used? Thank you
It depends on measuring method. If cataract is too dense, ultrasound method is used. Immersion is more precise than contact, however even contact method if performed carefully gives good results.
Light adjustable lenses might be the answer to some of the issues like contrast and astigmatism.
Not exactly. Regular astigmatism is ok, irregular not possible as with any traditional toric IOL (probably yet), but contrast is a function of optics and physics. And LAL, and LAL+ has no way to eliminate contrast loss, as other lenses like Vivity for example. Any EDOF will decrease contrast and CSF due to nature of the optics. The question is the amount of contrast decrease, but it's question of material and way of focus elongation via aberration or refraction induction.