gdebel
Joined 7 years ago
Joined 7 years ago
I would be very impressed if I had the opportunity to observe a myopic regression in a patient after cycloplegia (for both exams, of course).
The eyeball gets longer with time in high (pathological) myopia. Serious surgeons will check that the myopia is stable (1-2 years) before doing a surgery. The eye doesn't, usually, gets longer in patients with moderated myopia. All the work, in refractive surgery, is in good patients selection. It is very unusual to observe a significant myopic regression in patients with a stabilized myopia after 21 years. Of course the eye is an organ, there is no absolute rule in the human body. However, patients which were correctly selected for surgery don't, usually, see their myopia coming back with time.
"The long-term use of over-correcting glasses induces myopia" This is quite true. But it induces a myopia which is reversible. Overcorrection (which we try to avoid) leads to ciliary spasm. When the patient gets older, the lens gets less flexible (for everyone, this is what leads to presbyopia) and the myopia, if it was overcorrected, diminishes. It is common to reduce the correction for patients around 40.
We have a good, natural model in nature for over-corrected myopic eyes: hyperopic patients. They don't become myopic with time. Around 40-45 years, their hyperopia becomes clinically significant (they didn't need glasses before and they progressively need to have their hyperopia corrected at 45, or a little bit later if the hyperopia is slight).
"Repair is fast at first as you clear the ciliary spasm, and then slows down as you work on shortening the eyeball itself." No. Clearing the ciliary spasm (which is not present in every myopic patient, only the overcorrected ones) will indeed reduce the amount of myopia (the eye will return to its normal state: less myopia). However, we happen to have a very precise way to mesure the axial length of the eyeball (interferometry). While we commonly observe a lengthening of the eyeball in high, pathological myopia, I've never heard of an eyeball which shortened, nor read any paper which related this phenomenon. We don't know why the eyeball elongates in high myopia. But, as far as I know, eyeball never shorten.
"If you are considering laser eye surgery, please skim Lasik Complications." Yes, please do. You must be informed and your surgeon must inform you. However, you could also look at the number of refractive surgeons who underwent themselves this surgery, or operated their family. It is a common thing to operate our residents at the end of their internship because they saw the outcomes and want the procedure. Please note that any serious refractive surgeon will perform a refraction after cycloplegia, to remove any ciliary spasm and correct only the "real" myopia.
https://theophthalmologist.com/business-profession/do-ophtha...
Of course this is not how I talk to my patients... I usually explain the cataract surgery procedure as follows : "the only thing you will feel is water on the side of your face, and the only thing you will see is a very powerful light. You won't see anything scary and you won't feel any pain. We will talk during the surgery and when it will be over, you will tell me that you shouldn't have been afraid". And that's how it goes.
The eye injection procedure is even faster and painless.
Sorry for the gruesome details I gave.
Also, yes, don't look any Youtube videos, because your experience will be totally different than watching the procedure. Youtube videos are scary.
Don't postpone eye injections because of fear: if it is indicated, there is usually some degree of emergency.
For a complete argumentation and discussion about the case for the role of eye rubbing in keratoconus genesis, please look at this website : https://defeatkeratoconus.com/
(Disclaimer: I work closely with one of the main proponent of the eye rubbing hypothesis. However, please believe that I don't have any conflict of interest in this topic. I don't have anything to gain in raising awareness about this problem, except feeling that I'm doing something right)
There is more and more evidence to support the fact that KC is purely induced by eye rubbing.
Don't rub your eyes !
First, check your prescription with an ophthalmologist (or optometrist, depending on your country). You may benefit from a cycloplegic refraction, to ensure that you don't have an undercorrected hyperopia.
Then, always wear your glasses when working.
Your floaters don't have a direct relationship with your astigmatism and you may need a fundus examination, which will be done at the same time as your cycloplegic refraction (pupils will be dilated using eye drops).
Reducing the screen light and using a blue filter may also help. But good prescription is key.