Eye charts for illiterate patients

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gmburns@telesurf.com.py - 01 Sep 2006 17:17 GMT

Hi everyone,

I'm a translator in Paraguay, and I'm translating a text that would
literally read:

"[illiterate] patients were tested using the divergent lines/rays chart
to measure cylindrical refractive error."

The famous "tumbling E chart" is referred to elsewhere. Does someone
know the official name in English of the "divergent lines/rays chart".

Thanks in advance for any help.

Michael Burns

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S Akky - 01 Sep 2006 18:55 GMT

gmburns@telesurf.com.py put fingers to keyboard and typed...

> Hi everyone,
>
[quoted text clipped - 10 lines]
>
> Michael Burns

Fan and Block chart?

Signature

Shabs.

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Jan - 01 Sep 2006 20:08 GMT

gmburns@telesurf.com.py schreef:

> Hi everyone,
>
[quoted text clipped - 6 lines]
> The famous "tumbling E chart" is referred to elsewhere. Does someone
> know the official name in English of the "divergent lines/rays chart".

Clock dial chart? (in Dutch "stralenkrans")

Jan (normally Dutch spoken)

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otisbrown@pa.net - 01 Sep 2006 21:51 GMT

Dear Michael,

It is not clear exactly what are looking for. The following
site has "Tumbling Es" for your interest.

http://www.i-see.org/eyecharts.html

Otis

+++++++++++++

> Hi everyone,
>
[quoted text clipped - 10 lines]
>
> Michael Burns

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Mike Tyner - 02 Sep 2006 00:06 GMT

> It is not clear exactly what are looking for.

It's pretty clear he's talking about a clockdial.

-MT

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otisbrown@pa.net - 02 Sep 2006 03:25 GMT

I believe that an astigmatic chart was
included in the i-see chart section.

Otis

> > It is not clear exactly what are looking for.
>
> It's pretty clear he's talking about a clockdial.
>
> -MT

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Jan - 02 Sep 2006 21:56 GMT

otisbrown@pa.net schreef:

> Dear Michael,
>
> It is not clear exactly what are looking for.

Off cause Otis, that it isn't completely clear to you is very clear to
every real eye care specialist here.

Please be so kind and beat a retread Otis.

Free to Marcus Porcius Cato's "Ceterum censeo Carthaginem esse delendam"

In conclusion, I think that the "old plus lens junk therapy recovered by
Otis" should be destroyed.

Jan (normally Dutch spoken)

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CatmanX - 02 Sep 2006 06:27 GMT

Hi Michael,

It refers to a fan chart. There are 2 components: first the fan, which
tells us the axis of astigmatism, second a right angle, like an L that
allows us to evaluate the degree of astigmatism. It is not used much in
clinical prattise as it is slow and not super-accurate. More of
historical benefit.

Cheers,

dr grant

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LarryDoc - 02 Sep 2006 17:21 GMT

> Hi Michael,
>
[quoted text clipped - 3 lines]
> clinical prattise as it is slow and not super-accurate. More of
> historical benefit.

I use it once or twice a month when retinoscopy/autorefract is
inconsistent with subjective. Usually due to wearing spectacles that
are so completely off power and axis.

Also use it more often to demonstrate the effect of astigmatism.

And it's a cool visual!

LB, O.D.

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Jan - 02 Sep 2006 21:44 GMT

CatmanX schreef:

> Hi Michael,
>
[quoted text clipped - 7 lines]
>
> dr grant

Is it not the clockdial, the chart with spokes (like an antic wheel) and
in the middle of it an pointing arrow (two legs angle about 30
degrees) used with the "fog" method ?

Maybe a little old fashioned method but still very accurate and very
easy to explain to people.

In advance "shut up Ace"

And concerning Otis,

Free to Marcus Porcius Cato's "Ceterum censeo Carthaginem esse delendam"

In conclusion, I think that the "old plus lens junk therapy recovered by
Otis" should be destroyed.

Jan (normally Dutch spoken)

Reply to this Message

Jan - 02 Sep 2006 23:57 GMT

CatmanX schreef:

> Hi Michael,
>
[quoted text clipped - 7 lines]
>
> dr grant

Is it not the clockdial, the chart with spikes (like an antic wheel) and
in the middle of it an pointing arrow (two legs angle about 30
degrees) used with the "fog" method ?

Maybe a little old fashioned method but still very accurate and very
easy to explain to people.

In advance "shut up Ace"

And concerning Otis,

Free to Marcus Porcius Cato's "Ceterum censeo Carthaginem esse delendam"

In conclusion, I think that the "old plus lens junk therapy recovered by
Otis" should be destroyed.

Jan (normally Dutch spoken)

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gmburns@telesurf.com.py - 04 Sep 2006 14:09 GMT

My sincere thanks to all who have helped. Looking around, I seem to
find that the "clock dial" and "fan" charts are either extremely
similar or else identical, and either fits my source's mention of
'diagonal lines'.

The translation is from work done with an indigenous people in a remote
location in Latin America that the medical personnel had trouble even
getting to, so it is likely they used a less than optimal tests due to
transportability.

Thanks again. You have not only helped me, but also the people whose
eyes were being tested.

Michael Burns

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