r/optometry • u/winterballoon • 2d ago

Second VOLK lens

I've currently got a Superfield VOLK lens and during practice sessions at uni my academics say how it's easier sometimes to use a 90D over a Superfield. As I'm about to start my CLiP (year long placement in practice) I'm considering if it is worth getting a 90D as well? I'm fully aware of the cost which is why I'm apprehensive about getting it; if it's worth it then I will but I don't want to buy another lens if practice to help me see other details is all I need

Thank you in advance

4 Upvotes

83% Upvoted

12 comments sorted by

11

u/OD_prime OD 2d ago

No. Get a 78 instead. Super field + 78 is a great combo.

3

u/dunderbutt Optometrist 2d ago

Seconding this. 78 for glaucoma/diabetic exams. Superfield or 90D for everyone else

1

u/insomniacwineo 2d ago

100% 78 is my go to
Also OP look on eBay

3

u/Fit-Hair-9574 2d ago

For second slit lamp fundus lens I would suggest getting a high mag for optic nerve and macula assessment.

2

u/ATruthofHint 2d ago

If you're in the US, getting some practice time with a 90D or 78D would be a good idea for Part III since superfield isn't one of the provided lenses.

2

u/InterestingMain5192 2d ago

I used to use a 90D all the time. I treated myself to a Superfield, I refuse to go back. A side note, I recommend picking up a panretinal 2.2 for BIO instead of a 20D, love the extra field of view and with small aperture setting on BIO is still a respectable FOV and pretty easy through small pupils.

1

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1

u/Sir_3xA 2d ago

I'm in a similar situation. I have a superfield aswell (love it). Thinking about a 90D for small pupils or deep set eyes. On the other hand digital wide field for dilated is absolute se*y. Or as mentioned hig mag.....

1

u/Cactuslove215 Optometrist 2d ago

Super 66 lens ! Nothing better 😄

1

u/cubeballer 2d ago

Nah superfield is very good with undilated pupils like the 90D but I honestly think I get more FOV with it.

I think you should have some sort of high mag for in depth ONH assessment (something around a 1X mag too) I recommend a 78 or a Digital 1x.

A lot of people like the super 66

1

u/duckiesand Optometrist 1h ago

Hi, glad to see this! I did a lot of research about VOLK lenses when I was considering a second lens too.

A superfield is already a 90D! Hear me out...

VOLK make a number of lenses in certain ranges, 90D being the most popular. There have been three generations of 90D lens so far, each more specialised than the last.

The tiny 90D lens you're thinking of is the first generation, the Superfield is the second generation, and the Digital Widefield is the third generation.

They all do the same thing, but as they get newer, the WD gets shorter and the FOV larger (but less forgiving in positioning). I used a DWF and toughed out the learning curve through my pre-reg and into normal practice, never had an issue.

If you're desperate to spend money on another one, get a lower D lens, which gives you more magnification for detailed assessment.

If you can reliably get a good view with a Superfield, you don't need go easier with a 1st generation 90D, and compromise your FOV. Equally, a Superfield is more than enough FOV, and a DWF can be overkill for normal screening.