iol EDGE-GLARE anyone?
Posted , 20 users are following.
The term "edge glare" (edge-dysphotopsia) can relate to many problems. Usually it's light on the side of the eye (a window during a sunny day, a lamp on the bedside table in the dark room, ceiling lights in shops) causing the side of the eye flickering, seeing half-arcs, peripheral glare/flare. All things never happened when I had my natural lens and it's my curiosity to know why this is happening to some people and some don't. It's usually goes away if u cover your sides with hand, so the light MUST coming from the side to produce that annoying condition. But it's really something related to the edge of the lens? Or the reflective index of it? Have read tons of researches showing that the problem is absolutely caused by the truncated edges of the iol and a high-reflective lens doesn't help either because reflects badly the light inside, making it bouncing internally.
Any thought? Experiences with that? Did someone solve the problem by changing the lens for a "less problematic", with different features and design? Please answer.
0 likes, 62 replies
alaura1960 adlibi
Posted
I had a toric monofocal lens implanted in my right eye three weeks ago. the night of surgery I went outside and was shocked by the starbursts with concentric circles around every light. because I was scheduled to have the same lens implanted in my left eye in two weeks, my surgeon wanted me to be evaluated by a neuro opthalmologist before proceeding with the left eye. The neuro "cleared me for surgery" and two weeks later i had the left eye done. no problems with that eye. interestingly, my right pupil is always slightly larger in my right eye, hence the starbursts and circles. I have not attempted to drive at night because of the abberations which are highly distracting. I return to my surgeon April 1 for one month follow up. My gut feeling is that I'll be left with these unwanted images... The surgeon did mention that I might be able to use constricting drops if I have to drive at night. I guess time will tell. I'm 76 so do little nighttime driving but don't like feeling that I can't.
cazms53 alaura1960
Posted
Hi...I'm sorry to hear you have these problems with your right eye. Can you please tell me what brand of lens you had implanted? I'm scheduled for my first surgery tomorrow and nervous about what to expect. I really hope the glare you are experiencing improves with time.
alaura1960 cazms53
Posted
You are probably on the other side of your surgery by now. I hope everything went smoothly.
the lens I had implanted was J&J toric mono. The kind of problem I am having is more common with multifocal lenses.
cazms53 alaura1960
Posted
Yes, my surgery was yesterday. It went well and, so far, I am not noticing anything unusual. However, I am scheduled for my second surgery on Tuesday but I don't know if I want to proceed so quickly until I see how things progress with my first eye. Thank you for sharing the info on your lens. Is J & J the Tecnis lens?
Padbh alaura1960
Posted
I've been following this discussion because I have also experienced edge glare. my right eye was done a month ago and 2 days ago my left eye. I have the toric lens in both eyes. after the first eye I had that annoying glare and had to avoid light on that side. it slowly improved and is nearly gone. I had abnormal astigmatism so I opted for the toric. Aside from the side glare, after 4 weeks my vision in the right eye is now 20/20. I am amazed. So I had no hesitation going ahead with the left eye. 1 day after up to 20/25 so i am confident it will improve. but the edge glare is far more pronounced. I've been treated for high eye pressure but have been off of drops for years. after surgery i am back on drops but I cannot use alphagan. After years of Alphagan i developed an allergy that caused many tiny granuoli, causing pronounced discomfort and itching. My doctor has said it takes a lot to dilate my eyes, I wonder if it is taking longer to completely undilate? I wonder if there alternatives to alphagan should my left eye glare continue.
soks Padbh
Posted
what is granuoli?
Padbh soks
Posted
multiple tiny bumps beneath the cornea. it started as terrible itching. I went to my ophthalmologist and she said it was a very bad case of conjunctivitis, scrubbed down her office and gave meds. after a week of it getting worse I decided to go to an ophthalmologist in my primary's hospital after a visit and I was seen by a number of specialists. One specialist in eye diseases figured it out. There was a name for it but I can't remember what it was. It definitely was not contagious. He told me to immediately stop the Alphagan, gave me some strong drops and gels to keep my eyes moist and it was gone in 2 days.
jeff72055 adlibi
Posted
I am suffering with this issue right now. My surgery was 7 weeks ago and I still see the edge glare. I just asked my surgeon what he suggests and he said he can do a "ROC" Reverse Optics Capture to fix the problem.
evelinakallu jeff72055
Posted
Hi. Did you do ROC? Did it help with PD?
anne65294 adlibi
Posted
I had my surgery oct 20th 2020 7 weeks ago I now have glare around my left eye floaters move into the light causing flickering i see quick flashes in edge of eyes scares me dr said my retina is ok it thegel in my eyes i cant watch tv or been in any light due to glare and smudge like floaters so i wear sun glasses day and night i wish i never had the surgery
RonAKA adlibi
Posted
I had cataract surgery on one eye on October 7, 2020. It is a AcrySof IQ Aspheric Monofocal lens correcting for distance vision. To date I have not experienced any issues with either positive or negative dysphotopsias. I am 71 and as a result my maximum pupil size is probably reduced.
dyna66586 adlibi
Posted
I have this in my left eye - light from the side will cause halos (semi-circles).It makes me feel rather ill. 8 weeks now and the said it would go away. Only studies I read say postive-dysphotophsia does not go away.
Both my lenses we single-distance yet right eye sees better at 1-4 m - terrible at long distance other (left) is good at distance only.
Right eye when I wash my face around the eye, I swear I can feel either the incision or the edge of the lense. They say I have dry eye - but it is exactly the same place not the whole eye. I am in my early 60s.
Not sure I would recommend this if you are younger - unless you can't actually see because of your cataracts!
kimberleyes adlibi
Posted
I'm almost three weeks out from having one eye done with a plain mono-focal lens from Alcon. I'm definitely seeing edge glare in a dark room with lamp light coming in from the side. Sometimes I also see what appears to be a thin silvery hair caught on my eyelashes, but nothing is actually there. I also see jiggly motions when I move my eyes in small, quick movements as with reading.
maria52867 kimberleyes
Posted
Hi, are you still seeing jiggly motions and edge glare? I have a trifocal lense (AT LISA from Zeiss), and I am considering having a lens replacement. I think I'll go with the Clareon monofocal from Alcon, but I don't want to replace a problem lens with another one. So I am very curious to hear about other people's experiences with this Alcon lens.
maria52867 adlibi
Edited
Hi,
Has the dysphotopsia problems decreased, now when five years has passed?
I had a lens exchange 5 months ago in one eye, and I have the same experience as you with my iol (Zeiss' AT LISA). In addition I see a large circle in the middle of my field of vision when I walk by a light, from the side (like street lights) or from above (ceiling lights). The ring gets smaller or larger depending on where I'm looking. The reflection comes from a light source, but it is not a small ring around the light source itself. (I also have those kind of halos, actually 5-10 rings around a light source, but I can live with that).
It is worst at night, but also present at day time.
I am 38, and have larger pupils than the average, but not anything abnormal.
I am sure that it is edge glares because it helps to take pupil constrictor eye drops. But they have so many side effects that I cannot take them.
Now we are planning a replacement for another lens (J&J Eyhance), but I am nervous it wont have an affect on the biggest problem - the large rings - because I think it is the edge of the lense, not the rings in the trifocal iol, that causes the large halo.
Does anyone know if the Eyhance's edge frosted design really helps and reduces edge glare effects (better than the edge of the Zeiss' AT LISA)?
RonAKA maria52867
Edited
Another option you might want to consider is the RxSight LAL lens. It is made of silicone and as a result is thicker with a lower refractive index. Some believe that reduces risk of positive dysphotopsia. Also this lens as I understand it has one square edge and one rounded edge. The rounded edge may also reduce risk. The use of silicone however may introduce other risks so you would have to consider the pros and cons carefully.
RonAKA maria52867
Posted
I see I answered the OP a couple of years ago and said I had no such edge glare effect. Well that changed when I experienced a PVD event in my first lens which was a AcrySof IQ. I started to get this very quick lightening like curved streak of light right out at the periphery but only when there is a light off to the side and I am in the dark (pupils wide open). The surgeon and optometrist put it off as being caused by the PVD, but I think it is more than that. I now have my second eye done with a Clareon lens and have had a PVD in that eye now too. I get the same effect. But, to be clear I consider this a trivial problem and it is not a concern at all to me because it only happens under these very specific conditions - has to be very dark, and the light has to be off to the side some distance away. I most often see it when I am going to bed and have the lights off in the house except for a room that I walk by. So it happens, but is it a problem and does it affect my vision - not at all. The PVD is another matter. I don't like that at all. It annoying to have these blobs floating around now in both eyes. I was just getting to the point where I could hardly notice the first PVD and then I got the second one in the other eye. Now it is like two out of focus mosquitos flying around trying to catch each other. If I really focus on what I am trying to look at, I do not see them. But once I notice one of these little "bugs" then I see them both.
maria52867 RonAKA
Posted
That sounds really annoying. Do you know why you have PVD? Will it go away / get better / get worse over time?
RonAKA maria52867
Posted
The main factor causing PVD is simply your age. Apparently the vitreous lining ages and at some point pulls away from the back of the eye and falls down, or partly down. There are studies however that found at 12 months after cataract surgery the risk of a PVD is elevated by about 7 times over someone of similar demographics that has not had cataract surgery. One theory is that the bright light used in the surgery may accelerate the ageing process. Sounds a little far fetched, but I guess it may be possible.
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The optometrist keeps telling me that the thing will eventually drop to the bottom of the eye and out of sight. It has become a little lighter in colour but it certainly has not dropped out of sight in either eye.