Talk:Intraocular lens

Corneal Incision, etc

-- User:Steve McGrew I deleted the word "corneal", as the incision isn't made in the cornea, but in the white of the eye above the cornea. I also broke the paragraph before the Crystalens into two paragraphs, as the addition of the crystalens data made reading it clumsy.

I didn't change the statement that it requires a larger incision than traditional implants, but considered it as I've been researching this (I had the multifocal lens implanted in my left eye) and Wikipedia is the only place I've seen this. I'll ask my eye surgeon when I see her in September for the checkup. If she says the incisions are the same time I'll do a further edit. If any of you are eye surgeons have experience implanting these things, please clear the matter up. A citation would be helpful.

The number of incisions change depending on what the doctor foresees is needed. Sometimes, the number of incisions are greater than actually needed - the surgeon makes the incisions "just in case", because it is more difficult to make incisions in the eye after a while, when the eye is softer because fluids has leaked out. Also, the locations - for example in the cornea or the sclera (the white of the eye) - and their locations depends on the lens type; is the lens inplanted in front of the iris, or behind it? Is the lens aphakic or phakic? Is the lens foldable or not? Please note that I'm not an eye surgeon, just very interested... --User:Di92jn

Statistics

• Lede: "Surgeons annually implant more than 6 million lenses."
• Body: "...estimated by the World Health Organization to have increased to 20 million annually worldwide by 2010"

Which is correct? Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 17:58, 7 August 2019 (UTC)

Andy Mabbett, the claims are not mutually exclusive, and could both be correct, but are both somewhat out of date. I will see if I can find something more current. Cheers, · · · Peter Southwood ^(talk): 07:02, 21 May 2023 (UTC)

@Pbsouthwood How are they not mutually exclusive (other than that 20 million is indeed "more than 6 million")? Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 11:00, 21 May 2023 (UTC)

Just so;) Not very useful though. I have no access to the book which is even more out of date than the market report, which is more than 10 years old and pre-covid, so projections are even less reliable than they would normally be. Covid knocked a lot of medical projects back a fair bit, including large scale cataract projects like Vision2020. I have not found anything better yet. Cheers · · · Peter Southwood ^(talk): 12:55, 21 May 2023 (UTC)

Found a 2021 ref and made some changes. · · · Peter Southwood ^(talk): 13:25, 21 May 2023 (UTC)

Safety of IOL implantation vs LASIK

"[...] but a systematic review of studies has determined that the procedure is safer than conventional laser eye treatment."

The above statement in the introduction is very misleading for the following reasons:

• The only paper referenced for this claim barely qualifies as "a systematic review of studies" as it covers only 3 studies for a grand total of 228 eyes and dates back from 2014.

• More importantly, it omits to say that this study compared laser treatment to phakic IOL implantation (PIOL surgery). Phakic IOLs demonstrate better postoperative visual outcomes compared with pseudophakic implants. We should compare LASIK to pseudophakic implants which are used (by definition) for refractive lens exchange (RLE) because RLE is the procedure commonly offered as an alternative to LASIK.

• "Safety" in the 2014 review refers to the loss of 1 or 2 lines of BSCVA after the operation, not the occurrence of retinal detachment or other serious vision-threatening complications

• In conclusion, because "[s]erious complications are more common after RLE than after laser eye surgery or PIOL surgery [and] about 1 in 500 people have significant loss of vision after RLE", I propose to remove that claim from the introduction and give more details about the risks in the relevant sections further down in the body of the article. (Ref: Laser eye surgery and lens surgery) IOL-Facts (talk) 16:27, 16 September 2023 (UTC)

Wiki Education assignment: LLIB 1115 - Intro to Information Research

This article was the subject of a Wiki Education Foundation-supported course assignment, between 21 August 2023 and 8 December 2023. Further details are available on the course page. Student editor(s): CanOBeans12 (article contribs).

— Assignment last updated by CanOBeans12 (talk) 17:17, 4 October 2023 (UTC)