Thank you! Very helpful explanation!

@optometrywithkhurram6867

2 жыл бұрын

Thankyou..Sarai Alex.

Thank you for the video

I do all my measurements using a Spherical lens. It is quite accurate.

@optometrywithkhurram6867

Жыл бұрын

👍👍

Thank you , 👏

Thank you sir

Excellent presentation Mr Khurram ji. 👏

@optometrywithkhurram6867

2 жыл бұрын

🌸🌸

Great knowledge sir

@optometrywithkhurram6867

3 жыл бұрын

Keep watching

If i say i have 0.5sp,-1.5cy 180axis It gives me 1.25sp..right? But is it means -1 cy is eq to -.5 cy?

Great Explaination sir

@optometrywithkhurram6867

2 жыл бұрын

🌸🌸

Clearly explained tq sir

@optometrywithkhurram6867

2 жыл бұрын

Welcome dear

In railway medical, if power of lenses not exceed to 4D, candidate is eligible. My right eye has a power of -3.50 spherical, -. 75 cylindrical 20 degree axis. Is it less than 4D?

Hello. First of all, thank you so much for your wonderful explanations! I have a question about my prescription (which has sent me down an educational rabbit hole). My glasses prescription is +0.25 / -0.50 / 010 (right eye), and then the same, but with an axis of 005 in the left eye. I've been trying contacts to no avail, so it started me on a mission to learn as much as I can. With my glasses, the slight astigmatism correction makes a very noticeable difference, but we can't get the contacts right. Currently, I'm trying PWR 0.00, -0.75, axis 180 (OS) and 10 (OD). I feel as though the astigmatism correction might be too strong with these lenses. If I understand correctly, doing the spherical equivalent would negate everything as the SPH value would be 0. However, would it be possible to ignore the +0.25 SPH correction, and only correct the astigmatism using the spherical equivalent and have a sphere value of -0.25? My previous eye doctor said I wouldn't be able to get contacts, and I think now I understand why. I tried contacts correcting just the farsightedness, and it made my overall vision worse, so I'm hoping that maybe I can correct just the astigmatism. Thank you so much!

@optometrywithkhurram6867

Жыл бұрын

Welcome for your compliment dear. And as your question is concerned..well I suggest that don't go for contact lenses with the prescription you have. But as per my practice, I suggest you to use only -0.50 cylinder in both eyes with corrected axis that will give you good vision.

@AB-uh3cf

Жыл бұрын

@@optometrywithkhurram6867 Thank you so much for your reply. Because my astigmatism is so slight, I'm definitely coming to understand that glasses are going to give me the clearest option. But in your opinion, do you think if I only focused on the astigmatism and got -0.25 SPH power lenses (using the spherical equivalent, and just ignoring my current SPH power since it's also very slight) that that would at least make my astigmatism better than if I were wearing nothing at all? I tried correcting only the farsightedness, but that didn't help. But in the past, correcting only my astigmatism was still at least an improvement over nothing at all. I'm just looking to have contacts for situations where it would just be more convenient to not have anything on my face, but still primarily use my glasses. Thank you so much again!

@optometrywithkhurram6867

Жыл бұрын

@@AB-uh3cf if you wear just 0.25 spherical it would be useless. And it will be difficult to handle. If you really want to wear contacts then there is only option for you to wear -0.50 cylinder with your corrected axis.

Thanks you so much sir

@optometrywithkhurram6867

2 жыл бұрын

All the best

Sir I want to I purse my training in your guidence

2:54 time ..SE is possible when cylinder 1+ either 1- ×90° or any axis of +1&-1 cylinder power?

@optometrywithkhurram6867

Жыл бұрын

Yes...spherical equivalent will work when cyl power would be 1.00 plus or minus.

Personally, I prefer using Spherical lenses, to establish my own refractive state. The DMV does not require that cylinder be measured.

Thanku sir 😊

@optometrywithkhurram6867

2 жыл бұрын

You are welcome.. Keep watching

👏👏👏👏

@optometrywithkhurram6867

3 жыл бұрын

keep watching

Very educative indeed,sir please I have a question,is this spherical equivalent in JCC also applied when using stenopic slit.thank you very much

@optometrywithkhurram6867

2 жыл бұрын

Thankyou..💕 No.. actually JCC and Stenopic slit both are diffrent accessories and have different principles. There is no any spherical equivalent while using stenopic slit.

@sadiyaabdullahi5939

2 жыл бұрын

@@optometrywithkhurram6867 thank you very much sir.

Thx sir

@optometrywithkhurram6867

3 жыл бұрын

thankyou

👌👍

@optometrywithkhurram6867

3 жыл бұрын

👍

Dear sir for TOTAL POWER CALCULATION in terms of diaptor spherical equalent is used ?for example SPH -2.50 and CYL -1.50 /10 what will be the total eye power in terms of diaptor????

@optometrywithkhurram6867

2 жыл бұрын

The spherical equivalent of this power would be -3.25 spherical .. But Spehrical equivalent only be used when cylinder is not adjusted..as I mentioned in lecture.

@cricketgalaxy8718

2 жыл бұрын

@@optometrywithkhurram6867 thank you for your reply sir....sir actually For railway recruitment official notice says that "the power of lens should not exceed 4D" Suppose I have both SPH -2.75 and CYL -1.50 power like in this case power exceed 4D or what???? Waiting for your reply sir thank you

@optometrywithkhurram6867

2 жыл бұрын

@@cricketgalaxy8718 yes dear it's actually exceeding from 4 diopters.

Hello sir..just want to ask,..after all the computation you make getting the spherical equivalent , do you need to convert it to contact lens using the contact lens conversion chart or you ' ll just end up there and give it as it was? Supposedly the px wants contact lens

@mafia1270

2 жыл бұрын

Sir..i have a lot of questions regarding contact lens.. i hope you can help me

@optometrywithkhurram6867

2 жыл бұрын

Yes you can convert it into contact lens prescription after Spehrical equivalent.

@optometrywithkhurram6867

2 жыл бұрын

Sure..

Sir! In what condition sph equi.. should be applied?

@optometrywithkhurram6867

5 ай бұрын

If cyl is upto 1.5 cyl then you can apply spherical equivalent to minimize cyl.

Dear sir, when doing JCC add +0.25 with each - 0.50 cylinder at increases cylinders. Then finally should we do JCC Spherical equivalent again ???

@optometrywithkhurram6867

Жыл бұрын

No... Once you add 0.25 in 0.50 cyl increase , then no need to perform spherical equivalent again.

@optitechnoopticianskurunegala

Жыл бұрын

@@optometrywithkhurram6867 😍

Sir can you pleazz upload videos related to orthoptic , your videos are really help full for us.

@optometrywithkhurram6867

Жыл бұрын

Any specific topic regarding orthoptics ?

@CHEFSECRET19

Жыл бұрын

@@optometrywithkhurram6867 like phoria, tropia, how to differentiate between them, how to measure their deviation in near and distance??, at which angle this deviation is??

@optometrywithkhurram6867

Жыл бұрын

@@CHEFSECRET19 noted

@CHEFSECRET19

Жыл бұрын

@@optometrywithkhurram6867 thank you sir

Sir I have a question that when we did spehrical equivalency so why we write cylindrical corrections In JCC?

@optometrywithkhurram6867

Жыл бұрын

kzread.info/dash/bejne/a3qNzdWsmZDLoLw.html Watch this video..it will clear all your concepts regarding spherical equivalent and JCC.

@CHEFSECRET19

Жыл бұрын

@@optometrywithkhurram6867 I watched video and now i have clear concept regarding JCC and spehrical equivalent. Thanks for helping us by making such a nyc videos.

@optometrywithkhurram6867

Жыл бұрын

@@CHEFSECRET19 🌸👍

@optometrywithkhurram6867

Жыл бұрын

@@CHEFSECRET19 🌸👍

@optometrywithkhurram6867

Жыл бұрын

@@CHEFSECRET19 🌸👍

How about no myopia and -.75 astigmatism? What is the half of it? Can I use it with regular contact lenses?

@optometrywithkhurram6867

Жыл бұрын

Jessica ..let me make a detailed video on this topic.

@jessicaa954

Жыл бұрын

@@optometrywithkhurram6867 thank you!

@jessicaa954

Жыл бұрын

Toric lenses is not an option since its very expensive here in my country. Hope you can help me. I just want to enjoy the special occasions without my glasses on and without a headache.

my astigmatism in L-1.25 ...... when i do sph equivalent my astigmatism is increasing?

@optometrywithkhurram6867

2 жыл бұрын

No need to get spherical equivalent in your case..if you feel no problem in your glasses then continue..otherwise you can undercorrect it by optometrist

@vivek-fo8vb

2 жыл бұрын

@@optometrywithkhurram6867 6/9 or 6/12 undercorrection ?

@optometrywithkhurram6867

2 жыл бұрын

@@vivek-fo8vb yes if this prescription is not comfortable then you must have a new eye test..and you can adjust your prescription.

Which is good auto Refractometer

@optometrywithkhurram6867

2 жыл бұрын

Topcon family is good

Can you please do transposition?

@optometrywithkhurram6867

2 жыл бұрын

kzread.info/dash/bejne/hnampLGym7Kydrw.html This is complete video on transposition.

Sir if cyl is -1.25 what will be the half of cyl

@optometrywithkhurram6867

2 жыл бұрын

0.75.. 0.25 is not really considerable

@habiburrehmankhan3622

Жыл бұрын

@@optometrywithkhurram6867 not clear?

Suppose a person has +2.00/-2.00×90 What would be the spherical equivalent?

@lifeisgood-nk2dz

2 ай бұрын

+2.00cyl 180 yes?

+spherecial to -cylindrical kaisea karea

@optometrywithkhurram6867

2 жыл бұрын

Suppose prescription is. +2.00DS/ -1.00 DC 180 Half of cyl is = -0.50 cyl Then +1.50 DS will be the final prescription.

-1.5-1.5 ×60 sph equi

@optometrywithkhurram6867

2 жыл бұрын

-2.25 spherical is your equivalent.. But you should use your real number .

💋

@optometrywithkhurram6867

2 жыл бұрын

🧐

@krishverma8183

2 жыл бұрын

@@optometrywithkhurram6867 💋

- 2.00 -1.00 160* Any change axes

@optometrywithkhurram6867

3 жыл бұрын

ask question clearly dear.??

Thank you sir

@optometrywithkhurram6867

2 жыл бұрын

All the best

Thanks sir

@optometrywithkhurram6867

2 жыл бұрын

All the best