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Glossary entry

Spanish term or phrase:

tiempo de permanencia

English translation:

residence time

Added to glossary by Emma Goldsmith
Apr 23, 2013 04:55
11 yrs ago
33 viewers *
Spanish term

tiempo de permanencia

Spanish to English Medical Medical (general) ophthalmology - eye drops
This is in an article in an ophthalmology journal (Spain) describing research that compared two types of eye drops for dry eye syndrome.

"Podríamos definir como lágrima artificial ideal aquella que cumple con varios requisitos. En primer lugar, tener un *tiempo de permanencia* prolongado sobre la superficie ocular ..."

I don't know what the standard term for this is in ophthalmology language ... I'm not very familiar with this field.

I find two likely expressions in an online search: "dwell time" and "substantivity". Is it one of these, or is there another standard, most-widely-used technical term for "tiempo de permanencia" in English?

Thanks for your help.
Proposed translations (English)
4 +2 residence time
4 +2 dwell time
4 -1 resting time
Change log

May 7, 2013 06:36: Emma Goldsmith Created KOG entry

Discussion

Cinnamon Nolan Apr 24, 2013:
I agree with the last post: it'd be better to switch the sentence around and put 'remains on the ocular surface' or some such.
Zilin Cui Apr 24, 2013:
I'd say sth along the lines of "remains on the ocular surface" for long enough instead of translating literally, because artificial tears tecnically don't "reside", they stay/remain/are retained.
Charles Davis Apr 23, 2013:
My doubt about "retention" was whether it is short for "retention of effect", which is distinguished from residence/dwell time in the first source I cited.
Joseph Tein (asker) Apr 23, 2013:
"residence time" And now I see that several of the references at the end of the article use "residence time" in their title (same authors but different journals ... like Eye ... and Cornea ... not what I usually read).

So you're right, Charles, that there appear to be several synonymous terms we can use.
Charles Davis Apr 23, 2013:
Hi Joseph See the last line of my first comment at 09:57 :). And indeed Emma's response to my agree.
Joseph Tein (asker) Apr 23, 2013:
"retention time" ... is another term I just found:

"The ideal artificial lubricant should be preservative-free, contain [electrolytes] and have a polymeric system to increase its retention time."

http://www.tearfilm.org/dewsreport/pdfs/Management & Therapy...
liz askew Apr 23, 2013:
oh yes, I can now sleep tonight:)
Emma Goldsmith Apr 23, 2013:
If we're going to be picky... To follow on investigating Liz's Google hits, if you put your search inside inverted commas you get:
"ocular surface" "residence time" 50,200 hits
"ocular surface" "dwell time" 6,360 hits

but I agree, we really are getting a bit picky and we probably have better ways of spending our time :)
liz askew Apr 23, 2013:
sorry
OpHthalmology, Ophthalmology!!
liz askew Apr 23, 2013:
The only person who would know about opthalmology is an opthalmologist; this is why we humble translators have to find valid reference from opthalmology sites:) Cheers!
Let's not pretend any of us are experts in medicine.
Joseph Tein (asker) Apr 23, 2013:
ignorance of ophthalmology I'd say we could have a heated debate about who knows less about ophthalmology, Charles ... and I would go all-out to win! Yet I am in awe (based on the very little I've seen when researching translations + plus some recent experience with eye doctors) of the way this little organ is designed/engineered ... "miraculous" is a weak word to describe it.
Charles Davis Apr 23, 2013:
I yield to no one in my ignorance of ophthalmology, but this looks to me like a case in which there are two apparently synonymous terms, both used by specialists with roughly equal frequency. Take this, for example:

"This latter phenomenon is referred to as the retention of effect rather than a direct estimate of residence, or ocular surface dwell time [...] This retention of effect time is in agreement with the direct residence time reported earlier"
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3081798/

There's also "ocular surface retention time", but it's apparently less frequent and I'm not 100% sure it's the same thing.

Proposed translations

+2
2 hrs
Selected

residence time

Residence time sounds quite strange to me - although I'm no eye expert - but the references I've found look pretty reliable.

The two references below are from native British and native American sources, respectively.

Ocular surface residence times of artificial tear solutions.
http://www.ncbi.nlm.nih.gov/pubmed/1424647

Visual effect and residence time of artificial tears in dry eye subjects.
http://www.ncbi.nlm.nih.gov/pubmed/21532516
Peer comment(s):
agree Charles Davis
26 mins
Thanks, Charles. I think that residence, retention and dwell are all valid answers.
agree Lafayette Eaton : Residence time was the first thing that occurred tome
4 hrs
Thanks, Lafayette
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Selected automatically based on peer agreement."
-1
3 hrs

resting time

i´d say

--------------------------------------------------
Note added at 3 Stunden (2013-04-23 08:11:53 GMT)
--------------------------------------------------

as synonym, according to dict.cc, of dwellING time.
Note from asker:
You'd say ... based on what? Any references?
A synonym of the word "dwell" isn't sufficient. You have to do your research, as Liz and Emma have done, to demonstrate that your answer is valid ... that means that it is commonly used, as a standard term, in this field. Guesses and synonyms aren't sufficient.
Peer comment(s):
neutral Charles Davis : Maybe, but is there any evidence this term is used by ophthalmologists?
6 mins
disagree liz askew : There is no evidence to support this and it is dangerous not to provide any.
33 mins
Something went wrong...
+2
2 hrs

dwell time

Eye drops restore and maintain ocular surface health ...
www.pharmtech.com/pharmtech/article/articleDetail.jsp?id=51...
May 1, 2008 – Product provides balance of extended dwell time, minimal blur after instillation ... provides the best balance of extended dwell time while minimizing ... In addition, patients had to report using artificial tears for relief of dry eye.

--------------------------------------------------
Note added at 2 hrs (2013-04-23 06:59:46 GMT)
--------------------------------------------------

The challenge for most dry eye products is to optimize dwell time without causing sustained blur on instillation. I have found that [this drop] provides the best balance of extended dwell time while minimizing blur after instillation. The extended dwell time often has been referred to as a 'power nap' for the cornea, during which there is slowing of the chronic epithelial damage and time allowed for epithelial restoration. In the prospective clinical studies, these benefits of [this drop] were demonstrated as improvements in corneal staining over time

--------------------------------------------------
Note added at 3 hrs (2013-04-23 08:25:34 GMT)
--------------------------------------------------

1,620,000 sites with this

http://www.google.co.uk/#q=ocular surface dwell time&hl=en&e...

--------------------------------------------------
Note added at 3 hrs (2013-04-23 08:28:27 GMT)
--------------------------------------------------

as opposed to 68,000 with the other suggestion

https://www.google.co.uk/search?q=ocular surface resting tim...

If we're going to be picky
Peer comment(s):
agree Charles Davis
1 hr
Thank you!
agree Muriel Vasconcellos
1 day 12 hrs
Something went wrong...
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