Simple, Compound and mixed astigmatism with Prescription
if parallel light rays coming from infinity are focused on the retina this state of refraction is called emmetropia or normal eye.
if parallel light rays coming from infinity are focused behind the retina this state of refraction is called hypermetropia.
if parallel light rays coming from infinity are focused in front of the retina this state of refraction is called myopia.
if light rays do not focused on a single point but make different focal points called astigmatism.
if one focal point makes on the retina and other is behind the retina is called simple hyperopic astigmatism.
if one focal point makes on the retina and other is in front of the retina is called simple myopic astigmatism.
if both of the focal point makes behind the retina but at different positions is called compound hyperopic astigmatism.
if both of the focal point makes in front of the retina but at different positions is called compound myopic astigmatism.
if one focal point form in front of retina and one behind the retina is called mixed astigmatism.
Пікірлер: 41
👍🏻........Sir can you please share a vedio on Sturm conoid..?
@optometrywithkhurram6867
3 жыл бұрын
sure munazza . working on it.
@munazaawan7469
3 жыл бұрын
@@optometrywithkhurram6867 thankyou sir
God bless you sir ...very good explanation
Sir your explanation very simple and clear , can you make section of video to solve optic mcqs for royal collage or ico exam ?
Excellent dear keep it up👏
@optometrywithkhurram6867
3 жыл бұрын
thankyou sir.
you are too good sir and your teaching method is outstanding🥰
@optometrywithkhurram6867
3 жыл бұрын
thankyou. keep watching
Nice way of teaching the concept
@optometrywithkhurram6867
2 жыл бұрын
Keep watching.. Thankyou
Excellent sir, keep it up ✌
@optometrywithkhurram6867
3 жыл бұрын
Keep watching
Thank u sir
Wy we not need to transpose last tow prescription? If transpose prescription changes but how can we remember it
3:10 can we solve these type of astigmatism with help of optical croos ??? Anwer will be same or not?
Sir...👌
@optometrywithkhurram6867
3 жыл бұрын
thankyou
Would be interesting and worthwhile to know how these numbers and signs were obtained.
@optometrywithkhurram6867
Жыл бұрын
sure
👍👍
@optometrywithkhurram6867
3 жыл бұрын
thankyou
Good presentation but your voice is very low as i have to use my headphone always😊
@optometrywithkhurram6867
3 жыл бұрын
dont worry we will work on it in our next videos. keep watching us.
Aoa sir Plz share a vedio on worth 4 dot test and hurschberg test
@optometrywithkhurram6867
10 ай бұрын
Ok noted
👍
@optometrywithkhurram6867
3 жыл бұрын
thankyou
Mixed astigmatism is not clear how is +1.00 less than -2.00??
I need to consult to you my px with -6.00 cyl..hope i can talk to you
@optometrywithkhurram6867
Жыл бұрын
Yes ..you can ask..
Before the transposition is it the auto. Readings sir....
@optometrywithkhurram6867
2 жыл бұрын
i mentioned clearly that in which conditions transposition is necessary
Sir is there an cure for Compund myopic astigmatism?? Like surgery or something?
@optometrywithkhurram6867
2 жыл бұрын
No need to go for surgery dear.,. You simply wear glasses for any type of astigmatism
@kingrazor5280
2 жыл бұрын
@@optometrywithkhurram6867 thanks sir. But even with glasses the vertical double vision still exists!! Donno why!!
@optometrywithkhurram6867
2 жыл бұрын
@@kingrazor5280 you need to consult a good optometry doctor ..
Hi plz can u please re explain the compound and mix astig how did u know Is it some kind of rule?
@optometrywithkhurram6867
2 жыл бұрын
Yes dear.. It's a rule.. Which I explained in this video.. About simple, compound and mixed astigmatism.. If you listen carefully.. But if still its unclear you can ask specify yoir question.. And sure I will answer. 👍
Hello Sir...i had something to consult to you..
@optometrywithkhurram6867
Жыл бұрын
Yes ...you can ask ?