I totally agree. I think the SuperField is the best allrounder lens for beginners. Now I usually use the 90D or the Digital Wide Field depending on what I want to see. Great video 👍
Thank you for the video! I have just ordered the Volk Super field NC for my practical year and hopefully many more years to come in ophthalmology. I remember being in your doctor- patient course three years ago, so your teaching clearly left an impression and paved my career ;)
Beginning of my career, I used 90 and 20 all the time. Now I use 78 for 90% and use 20D only for flashes/floaters (in addition to 78D all the way around). I find small tears better with 78D than I do with 20D, but I may miss some nevi or subtle periph lesions with 78. I, personally, like 78 over Superfield and the digital lens. However, Good video and advice.
I use my - 90D 80% of the time. - Digital Wide Field 15% of the time for dilated patients with peripheral retinal problems. - Super66 5% of the time for Macular changes I'm not sure about (MacTel, RAP) - 20D close to 0%
Eaaahh, doc! It's really strange to me too, why do a lot of ophthalmologists from all over the world use "helmet" lenses so often!? I'm very grateful to my teachers, who taught me the art of the indirect ophthalmoscopy with the slit lamp! Great video, love it! Regards from Russia!
@@КириллГайдук-м9г well, here we have salaries for doctors-beginners around $200-300, so buying Volk is a bit hard. And those physicians who in some years manage to earn more, usually tend to have difficulties with studying something new.
I started with a 90D and bought a digital wide field later on, when I noticed that I was missing some peripheral tears. I rarely use a mirrored contact lens any more.
I feel the video is for beginner ophthalmologists.. the advice does not apply for more experienced ones, and I mean after 2-3 years of practice your thoughts will change! Examples: Helmet lenses: sometimes it’s important to use to do scleral indented retinal exam to visualise hidden tears. Also, 20 has higher magnification, less field, longer working distance.. So 28D would be easier to use. The digital series has an advantage of different type of glass, hence clearer view.. Some may or may not appreciate the difference. You will need a higher magnification lens in certain situations.. but not so often. It’s not only to visualise the macula, but I find it helpful in examining the disc as well. I agree, if you would get one lens, just go for one of the all purposes lenses. I’ve personally got a Digital Widefield and Digital High mag.
Hi i’m from Indonesia I’ve used 20 D for indirect ophthalmoscope in Retinal Clinic for examination in Diabetic Retinopathy, RD, Lattice degeneration, and so on. All of the patients were all dilated, but if the case middilation we could still adjust the helmet lamp. We used 30D also for ROP screening. The 20 D is good because the field is wide enough to see the whole picture. The 78 D digital was used in Glaucoma Clinic and I bought my first lens was 90D for my Neoroophthalmology Clinic and Pediatric patient.
Thanks a lot Dr. Kuske. I am doing a trainee in the ophtalmology and before seeing your video I had no idea about the difference between the different lenses . I am also struggling to get a clear picture of the retina and I am looking forward to watch your next video about that. And It's more complicated when I ask the patient to look in different directions to get a hole picture of the retina especially when using the 28D lens that my chef use. Best Ragards from Germany.
If you have a choice, please try ocular instrument osher max field 78D and 120D. Equally good lenses as Volk for wide field view and small pupil as well for optic disc. and macula. Don't worry about 1.0 X for OD or macula, as we eventually will use OCT or HVF.
I agree if you just want to buy one lens, get the superfield. If your budget is a little higher, 90D + wide field. In any case, you need a helmet lense. I use the clear field, and I am very happy with it. Probably not worth the extra money though. Great video! Keep up the incredible work.
hey, i'm planning to buy two lenses, for slit lamp i'm pretty sure that im buying a superfield, but I have doubts about which helment lense to buy, in Spain we use BIO lenses quite a lot, and I think the clear field is the best one (good magnification, great field of view!) , but I'm used to volk 20 D (and I also like 28D but the magnification is not good enough), if you were to buy again your helmet lense, would you buy a 20D or clear field? Is the clear field easy to use?Does it make some aberrations or unpleasent reflexes as I have read? Is the magnification good enough? I would appreciate a lot your answers! Thanks in advance
Would not recommend a high mag under any circumstances, I have a high mag and a super 66, an whatever detail you might miss with a super 66 is irrelevant + you have a OCT image anyways. I never use my high mag. Digital wide field is tremendous and the 90d ist just fun to use. Super vitreous is good if you perform the exam in Miosis and on patients were you want to get a good overview.
Bought multiple lenses during ophthalmology residency in USA. Now I just use digital widefield at slit lamp. 28D to laser tears with indirect. I rely on OCT for details, so I find macular lens not useful.
Hi! Thank you for the video! I’m about to buy my first lenses and wanted to ask, what you think about the 28D compared to 20D or Panretinal 2.2? I have pretty small hands (glove size 6) and during my studies tried the 20D, which I found pretty difficult to hold and use. As my allround lense, I think I’ll choose the 90D. Thank you! :)
Hi i’m from Indonesia I’ve used 20 D for indirect ophthalmoscope in Retinal Clinic for examination in Diabetic Retinopathy, RD, Lattice degeneration, and so on. All of the patients were all dilated, but if the case middilation we could still adjust the helmet lamp. We used 30D also for ROP screening. The 20 D is good because the field is wide enough to see the whole picture. The 78 D digital was used in Glaucoma Clinic and I bought my first lens was 90D for my Neoroophthalmology Clinic and Pediatric patient, and i am still using it now for my daily practice.
Optometry student here: why do you need a high mag lens when you can increase mag on your slit lamp? Is a digital high mag better than using a digital wide field on a higher mag setting?
to be honest, I've always asked myself that as a resident. and yes, you can. the difference is not huge but imagine this as a comparison: you can put a 18mm lens on your camera and have a wide angle view and just zoom in if you want details. even if your camera would be able to zoom in without loss of quality, the zoomed in image from a 18mm lens and the native image from a 50mm lens would NOT look the same. the 50mm adds what photographers call compression: it stacks things above each other which gives it more of a 3D look (more depth). therefore, with a 78D a macular edema is much more prominent than with a 20D with zoom from the slitlamp
How difficult is it to use super field nc in undilated patients ? Have used digital wide field. The peripheral view is great but the working distance is poor.
unfortunately I don't have much experience with the world of generic lenses. You can see something with any cheap lens. but as always in optics: to get a sharp picture costs a lot of money. I have probably used my 90D somewhere between 20 and 30 times a day for the last 10 years. I think it's a good investment. If you're not sure, if you'll stay in Ophthalmology: get a cheap one. If you want to stay: get the Volk one
that is a good question...I keep mine in a well built and padded little box. and only clean it with soap water and a microfibre cloth. If you don't keep them in your coat without protection, they will last you forever
Try to get the lens a bit closer to the patients eye, tilt it in the direction you want to see and really have the patient look in the direction you want to examine. Or get a digital wide field. It does make it easier to see further out in the periphery.
I'm in my second year of retina fellowship. Most of the time I use a digital wide field. I use a 20D when a patient is complaining about "retinal tear related symptoms" and I couldn't find anything with the digital wide field; when it is difficult to see with the widefield in general (opaque media, not dense vitreous hemorrhage, etc) or when the patient cannot be set on the slit lamp, and I also use it for laser PRP whenever it is a difficult patient (neovascular glaucoma, etc), for most other peripheral lasers I have an H-R wide field. But yeah, I would say I use the 20D quite often.
for laser I prefer the "retina180" which is a single use lens by katena. more environmentally concient would be a volk superquad or haag-streit 3 mirror lens for the periphery and a volk quadraspheric for central lasers
@@AhmedAli-dz8sj I've used it and love it except it has the same issue as the DWF where you are interacting with px lashes. It is small so can be done in undilated and less glare I find than DWF but you lose even more magnification. I should say it also seems to have excellent stereopsis
I have never tried the cheaper ones but I would assume like the difference between a cheap and an expensive camera lens. you can see everything, it's just not as sharp or detailed and probably more optical imperfections like chromatic and spherical aberrations. you're unlikely to miss a retinal detachment but might not be able to see a small tear or hole
Terrrtible….! I bought a 20D as I didn’t have one, -don’t use often- but was useless. Had to get volk instead. Too much hassle to send back to India. Was not as advertised either, no coating on lens… a joke … hehe … and $$ learning experience!
I totally agree. I think the SuperField is the best allrounder lens for beginners. Now I usually use the 90D or the Digital Wide Field depending on what I want to see. Great video 👍
Thank you for the video! I have just ordered the Volk Super field NC for my practical year and hopefully many more years to come in ophthalmology. I remember being in your doctor- patient course three years ago, so your teaching clearly left an impression and paved my career ;)
Beginning of my career, I used 90 and 20 all the time. Now I use 78 for 90% and use 20D only for flashes/floaters (in addition to 78D all the way around). I find small tears better with 78D than I do with 20D, but I may miss some nevi or subtle periph lesions with 78. I, personally, like 78 over Superfield and the digital lens. However, Good video and advice.
I have had 90D in my residency. Amazing video. Regards from Bosnia
I use the SuperField for everything and with proper patient eye positioning one can definitely visualize the periphery depending on the dilation.
I use my
- 90D 80% of the time.
- Digital Wide Field 15% of the time for dilated patients with peripheral retinal problems.
- Super66 5% of the time for Macular changes I'm not sure about (MacTel, RAP)
- 20D close to 0%
Eaaahh, doc! It's really strange to me too, why do a lot of ophthalmologists from all over the world use "helmet" lenses so often!? I'm very grateful to my teachers, who taught me the art of the indirect ophthalmoscopy with the slit lamp!
Great video, love it!
Regards from Russia!
@@КириллГайдук-м9г well, here we have salaries for doctors-beginners around $200-300, so buying Volk is a bit hard.
And those physicians who in some years manage to earn more, usually tend to have difficulties with studying something new.
Pour moi 90 90%
V3M 10%
Just FYI: RAP is now called MNV 3.
I started with a 90D and bought a digital wide field later on, when I noticed that I was missing some peripheral tears. I rarely use a mirrored contact lens any more.
I feel the video is for beginner ophthalmologists.. the advice does not apply for more experienced ones, and I mean after 2-3 years of practice your thoughts will change!
Examples:
Helmet lenses: sometimes it’s important to use to do scleral indented retinal exam to visualise hidden tears. Also, 20 has higher magnification, less field, longer working distance.. So 28D would be easier to use.
The digital series has an advantage of different type of glass, hence clearer view.. Some may or may not appreciate the difference.
You will need a higher magnification lens in certain situations.. but not so often. It’s not only to visualise the macula, but I find it helpful in examining the disc as well. I agree, if you would get one lens, just go for one of the all purposes lenses.
I’ve personally got a Digital Widefield and Digital High mag.
Hi i’m from Indonesia
I’ve used 20 D for indirect ophthalmoscope in Retinal Clinic for examination in Diabetic Retinopathy, RD, Lattice degeneration, and so on. All of the patients were all dilated, but if the case middilation we could still adjust the helmet lamp.
We used 30D also for ROP screening.
The 20 D is good because the field is wide enough to see the whole picture.
The 78 D digital was used in Glaucoma Clinic and I bought my first lens was 90D for my Neoroophthalmology Clinic and Pediatric patient.
I'm going for a 90D thank u so much
This channel is a real find of the day for me. I was looking for an answer to one of my questions and found much more interesting things. Thank you!
Thanks a lot Dr. Kuske. I am doing a trainee in the ophtalmology and before seeing your video I had no idea about the difference between the different lenses . I am also struggling to get a clear picture of the retina and I am looking forward to watch your next video about that. And It's more complicated when I ask the patient to look in different directions to get a hole picture of the retina especially when using the 28D lens that my chef use. Best Ragards from Germany.
thanks a lot for your comment...my next video about fundus exam tricks is almost done...i'll try to finish it this weekend
If you have a choice, please try ocular instrument osher max field 78D and 120D.
Equally good lenses as Volk for wide field view and small pupil as well for optic disc.
and macula.
Don't worry about 1.0 X for OD or macula, as we eventually will use OCT or HVF.
I will definitely do that if I get a chance! I love trying and comparing different brands
@@learnabouteyes can you try Katena lens and give us your review? It would be so helpful! Greetings from Mexico
What advantages of 120D over 90D?
I agree if you just want to buy one lens, get the superfield. If your budget is a little higher, 90D + wide field. In any case, you need a helmet lense. I use the clear field, and I am very happy with it. Probably not worth the extra money though. Great video! Keep up the incredible work.
hey, i'm planning to buy two lenses, for slit lamp i'm pretty sure that im buying a superfield, but I have doubts about which helment lense to buy, in Spain we use BIO lenses quite a lot, and I think the clear field is the best one (good magnification, great field of view!) , but I'm used to volk 20 D (and I also like 28D but the magnification is not good enough), if you were to buy again your helmet lense, would you buy a 20D or clear field? Is the clear field easy to use?Does it make some aberrations or unpleasent reflexes as I have read? Is the magnification good enough?
I would appreciate a lot your answers! Thanks in advance
Hi Dr. Thanks for.video. hey for 20D to use with disabilities patience which ring size?
thank you that was really very helpful! Best wishes, Allan Harris
Once you start using wide field you won't switch back to 90 d.
Even on undilated pxs?
Great video! over here we use 78D, 20D, and 90D (:
I used all volk I think the Superfiled is the best for beginners
Please would you recommend for macula lens : super 66 or digital 1.0 ?!
I had 90D and is super. Regards from North Macedonia
do you ever use a 20D?
@@learnabouteyes no
I bought 20D volk today.
Congratulate me
great choice....tell us about your experience with it after you've used it
Thank you.. I am use 90D
20D and 20D 2.2...which one is better
Would not recommend a high mag under any circumstances, I have a high mag and a super 66, an whatever detail you might miss with a super 66 is irrelevant + you have a OCT image anyways. I never use my high mag. Digital wide field is tremendous and the 90d ist just fun to use. Super vitreous is good if you perform the exam in Miosis and on patients were you want to get a good overview.
great summary
@@learnabouteyes great video!
Bought multiple lenses during ophthalmology residency in USA. Now I just use digital widefield at slit lamp. 28D to laser tears with indirect. I rely on OCT for details, so I find macular lens not useful.
Hi! Thank you for the video! I’m about to buy my first lenses and wanted to ask, what you think about the 28D compared to 20D or Panretinal 2.2? I have pretty small hands (glove size 6) and during my studies tried the 20D, which I found pretty difficult to hold and use. As my allround lense, I think I’ll choose the 90D. Thank you! :)
i have never tried a 28D but I'm sure it works. the volk digital clear field is small
too
Hi i’m from Indonesia
I’ve used 20 D for indirect ophthalmoscope in Retinal Clinic for examination in Diabetic Retinopathy, RD, Lattice degeneration, and so on. All of the patients were all dilated, but if the case middilation we could still adjust the helmet lamp.
We used 30D also for ROP screening.
The 20 D is good because the field is wide enough to see the whole picture.
The 78 D digital was used in Glaucoma Clinic and I bought my first lens was 90D for my Neoroophthalmology Clinic and Pediatric patient, and i am still using it now for my daily practice.
thanks for your input. it is so interesting to read how eye doctors work in other countries.
the 30D is perfect for ROP screening! small, crisp image and good field of view!
I am fan if super field you can see up to ora serrata in dilated patient.
Can you see up to the ora serrata with a super field? TIA
Appreciate your work. Can you make a video on must know things for new residents?
i will
@@learnabouteyes thanks doc!
Which is better 20 D or Pan retinal 2.2?
Dead doctor. Could You tell please about cleaning of a glass lenses 90D?
which one lens to buy for bedside fundoscopy purpose for pupiloedema, diabetic , and hypertensive retinopathy? for a physician
bedside with an indirect (BIO) helmet? Get a 20D, i think it's good enough
Optometry student here: why do you need a high mag lens when you can increase mag on your slit lamp? Is a digital high mag better than using a digital wide field on a higher mag setting?
to be honest, I've always asked myself that as a resident. and yes, you can. the difference is not huge but imagine this as a comparison: you can put a 18mm lens on your camera and have a wide angle view and just zoom in if you want details. even if your camera would be able to zoom in without loss of quality, the zoomed in image from a 18mm lens and the native image from a 50mm lens would NOT look the same. the 50mm adds what photographers call compression: it stacks things above each other which gives it more of a 3D look (more depth). therefore, with a 78D a macular edema is much more prominent than with a 20D with zoom from the slitlamp
sorry, i meant 78D shows more macular edema than 90D
I have a 90D made by Russian, and bought a digital wide field recently. From China!
can you let me know about the prices and the performance?
How difficult is it to use super field nc in undilated patients ? Have used digital wide field. The peripheral view is great but the working distance is poor.
the superfield is easier in a miotic patient than the digital wide field.
I bought a 90d lens 😍
Could you comment on the small pupil capability of super field?
pretty good. i prefer the 90 for small pupil but the superfield works well too
J adore la 90Diop c est ma preferée
Watching this in 2024. What is your experience
between using a Volks 90D and other generics? Word is Volks is gold standard.
unfortunately I don't have much experience with the world of generic lenses. You can see something with any cheap lens. but as always in optics: to get a sharp picture costs a lot of money. I have probably used my 90D somewhere between 20 and 30 times a day for the last 10 years. I think it's a good investment.
If you're not sure, if you'll stay in Ophthalmology: get a cheap one. If you want to stay: get the Volk one
Thank you very much
you're welcome ;-)
Where can I find information on care and cleaning of these lenses?
that is a good question...I keep mine in a well built and padded little box. and only clean it with soap water and a microfibre cloth.
If you don't keep them in your coat without protection, they will last you forever
Hello! You can find our Cleaning and Care Guide on our website, www.volk.com - under "Resources"
I have 90D , 28D
How do you think about superquard, quardaspheric lens??
i love superquad for panret laser in diabetics. I only use quadraspheric for photodynamic therapy
I started my career with 90D, but its very difficult to see periphery
Try to get the lens a bit closer to the patients eye, tilt it in the direction you want to see and really have the patient look in the direction you want to examine.
Or get a digital wide field. It does make it easier to see further out in the periphery.
@@learnabouteyes thank you
I'm in my second year of retina fellowship.
Most of the time I use a digital wide field.
I use a 20D when a patient is complaining about "retinal tear related symptoms" and I couldn't find anything with the digital wide field; when it is difficult to see with the widefield in general (opaque media, not dense vitreous hemorrhage, etc) or when the patient cannot be set on the slit lamp, and I also use it for laser PRP whenever it is a difficult patient (neovascular glaucoma, etc), for most other peripheral lasers I have an H-R wide field.
But yeah, I would say I use the 20D quite often.
do you feel like you can see further into the periphery with the 20D than Digital Wide Field?
@@learnabouteyes Doing scleral depression... yes
I have 90D
Can you also advise lenses for retinal laser
for laser I prefer the "retina180" which is a single use lens by katena. more environmentally concient would be a volk superquad or haag-streit 3 mirror lens for the periphery and a volk quadraspheric for central lasers
Volk Quad spheric
What about the laser setting ? I can't find the video
you're right...haven't filmed that yet...that's a good idea. I'll film that in the next couple of weeks
@@learnabouteyes thank you so much i appreciated
we use volks 90D in residency, form korea
the 90d is a very good lens...i use it every day...
Do you have any experience using Super Vitreofundus ?
unfortunately no...anyone else?
Thanks for responding
@@AhmedAli-dz8sj I've used it and love it except it has the same issue as the DWF where you are interacting with px lashes. It is small so can be done in undilated and less glare I find than DWF but you lose even more magnification. I should say it also seems to have excellent stereopsis
@@andrewcoates9970 Thank you for your reply
Superfiled lens
78d
what I also wanna find out is how Volk lenses compare to generic india brands that cost $20-30
I have never tried the cheaper ones but I would assume like the difference between a cheap and an expensive camera lens. you can see everything, it's just not as sharp or detailed and probably more optical imperfections like chromatic and spherical aberrations. you're unlikely to miss a retinal detachment but might not be able to see a small tear or hole
Terrrtible….! I bought a 20D as I didn’t have one, -don’t use often- but was useless. Had to get volk instead. Too much hassle to send back to India. Was not as advertised either, no coating on lens… a joke … hehe … and $$ learning experience!
I bought my lenses on Aliexpress. They are excellent and cheaper.
that's a cool tip...i order a lot there too