Cornea 1: A Remarkable Structure
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- čas přidán 21. 07. 2024
- The Cornea is remarkable for clarity, stable shape and as the main part of the focusing system of the Eye. Details of corneal layers and their function. Corneal shape and Astigmatism.
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Excellent video! Will be taking this to work to show my colleagues in the eye dept. Looking now for any other lectures you have done.
Thank you for an amazing video!
Thankyou Sir for such a wonderful explanation.It really helped me out.
Amazing video thank you .
very nice presentation.
This video is so good better than any movie
Excellent description
Excellent presentation! What an amazing structure. Thank you for the excellent video Dr. Blackwell! Soon I'll have a consulation for a lens implant. I know that the ophthamologist will check the endothelial layer to be sure that my eyes are healthy enough for the surgery. I never thought that in my lifetime I may be able to function without glasses or contact lenses! I'm very hopeful that this procedure will work for me.
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What an amazing and precise presentation. Thank you very much.
The cornea is remarkable, but Dr. Blackwell is even more so! His knowledge and eloquence is effortless, and his desire to spread this knowledge is wonderfully generous. I have learned more about the eye through information available on the internet than all my study years! Many thanks.
Excellent tutorial!
Many thanks for your valuable video...
great video. if anyone watching this is considering lasik, DO NOT DO IT !!!. i've had it done and its been the biggest regret of my life. It is not a safe surgery and watching this video along with what lasik does to the cornea should explain everything. wish i understood more about it before undergoing it.
How do u heal corneal abrasions completely?
i have my cornea transplant at liverpool eye hospital sòon contact lens bacterial infection lost the sight in left eye
Sir make the video on the histology of limbus and conjunctiva
I've been working with eyes for 14 years now, but every time sombody else tells me something about eyes. It amazes me again.
hallo ik ben Martin en ik ben vergeten om mij uit te loggen dus nu kan iedereen iets op mijn account schrijven........ oh oh oh
Martin Heemskerk we make All type of Ophthalmology instrument
Martin Heemskerk hi wats up sir we make All type of surgical Ophthalmology instrument exports quality plz reel me you requirement my email I’d goharrana5555@gmail.com I gave you positive response with reasonable price
@@worlddutchie i want to know abut eye
Very nice and good explaination thank u
Yet another fantastic lecture, beautifully explained; yes, the cornea is amazing, but Mr. Blackwell is truly awesome! 😊
thanks for this video
I did my cornea in July i it doing good but I have hope I can see good in 6 mth
A useful presentation for beginners
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What happens when a cataract operation goes wrong and damages the cornea .?
I love the cornea too craig
Good subject thank you
Once I saw someone's eyes and they were so bright I was actually scared
Excellent presentation! What an amazing structure. Thank you for the excellent video Dr. Blackwell! but I am a bit in disaccord with you that astigmatism is not a disease but an abnormality , if you believe in statistics you would agree with me , how come that According to an American study published in Archives of Ophthalmology, nearly three in 10 children (28.4%) between the ages of five and 17 have astigmatism.[15]
A recent Brazilian study found that 34% of the students in one city were astigmatic
.[16] Regarding the prevalence in adults, a recent study in Bangladesh found that nearly 1 in 3 (32.4%) of those over the age of 30 had astigmatism.[17]
these statistic were taken from wikipedia
question that is raised then could it be that nearly 30% of american kids have the astigmatism, as an abnormality caused by heredity ? answer I do not think so just because the percentage is too high and because I am suspecting a substance that is used as a food additive
Amorphous silicon dioxides have been used for more than four decades as food additives (E551). They can be added to certain powdery foods such as table salt, seasonings, dietary supplements, and dry foods [3] to avoid clogging
In conclusion This is really a serious health issue because astigmatism can lead to myopia which according to wikipedia myopia has been increasing so rapidly throughout the developed world, environmental factors must be more important.
and the final warning call is that the food industry should stop adding the substance to the food they are making
and people should be careful about what they are eating and giving to their kids
What studies or even plausible explanations do you have to show astigmatism is caused by amorphous silicon dioxide? It is not always a hereditary abnormality, it can just occur as the ocular components grow and change in the eye. Also in that case, how does silicone dioxide also cause a general shift from WTR astigmatism and ATR with age?
@@CheekyGal301 nanotechnology advance will provide proof to what I say for now only statistics can backup what I say
@@mouleoub Why silicon dioxide specifically out of everything?
I do agree with you on food/environment being a key factor in health though. I've noticed most diseases can be traced to some nutrient deficiencies or excess in something else. Hippocrates was right when he said, "let food be thy medicine"...
@@weneedmoreconsideratepeopl4006 Silica NPs (SiNPs) are widely utilized in biomedical applications due to their unique chemical and physical properties [5,6]. The safety of SiNPs is becoming a concern of an increasing number of people [7]. The influence of SiNPs on basic biology, medicine and agro-nanoproducts was recently reviewed [8]. Epidemiological studies have drawn inconsistent conclusions regarding amorphous silica toxicity [9]. SiNPs interact with the immune system in many ways for more reading www.futuremedicine.com/doi/10.2217/nnm-2018-0076 I am not expert in biotechnology but i suspect silicon dioxide to be the primary cause of the increase of astigmatism among kids
I'm always amazed by the eye.
I'm always amazed by how my body works O_o
great professor...thanks for ur precious lecture...much clarified
How about both, and clear. The cornea is derived from skin tissue, which is quite tough. Best analogy I can think of is a basketball. At low inflation pressure you can indent it with your finger, but the surface would be hard to stretch or puncture. Wouldn't try that at home though.
Craig Blackwell how do u heal corneal abrasions for example if cigarette ash gets on to your eye? I see floaters (light patches) and my eye leaks, it’s weird because when reading I skip past words when reading i hope there is a way to heal it
Craig Blackwell hi
Hey, would it be news to you if someone discovered that tiny little laser-beams shoot out of your eyes when you look at something?
czcams.com/video/PZwn4j0L3nc/video.html
Most simplified
Dr blackwell can you be my attending in my subspecialty 😊
It is better to show the required information
My vision of the left eye got blurry after a chemical burn, is it possible to correct it ?
Let me know what happened with you. I am going through the exact same thing and I am dying of fear
@@zeinabelbatoulsbaiti4308 When did this happen to you ?
@@bousbousb on july 14 2021
@@zeinabelbatoulsbaiti4308 I'm gonna ask you some questions to better understand your situation. What was the product. A cleaning products ? Is it an alkali or an acid ? Is it only with one eye or both ? Did your vision improve with time or it's been blurry since then ? And lastly did you see an ophthalmologist ?
@@bousbousb it was a nail hardner and strengthener a mesh of an acid and a base. Left eye. The opthalmologist noted an improvement with her test but I didnot notice that in real life. Offocurse I have but I am still dying in fear.
ARKADAŞ BU ANLATILANLARIN TÜRKÇESİ YOK MU.
my eyes cornea prblam
help me Dr
The eyes of Adam was created after my two spots with light over my ceiling. Holy Trinity created The Cosmos, The Earth and Adam and Eve after my house.
The verb "to see" - "S" created after the symbol The Way of Buddha and two "e" after my two spots with light over my ceiling.
Lasik ruined my life.
The fool says in his heart "there is no God".
Bible😇
i have my cornea transplant at liverpool eye hospital sòon contact lens bacterial infection lost the sight in left eye.
I am too scared to have a cornea transplant , especially when the cataract operation on my left eye left me blind in that eye