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Contrast sensitivity and visual recovery time in diabetic patients treated with panretinal photocoagulation

Lövestam Adrian, Monica LU ; Svendenius, Nils LU and Agardh, Elisabet LU (2000) In Acta Ophthalmologica Scandinavica1998-01-01+01:002008-01-01+01:00 78(6). p.672-676
Abstract
PURPOSE: To study patients treated with panretinal photocoagulation regarding contrast sensitivity and visual recovery time after exposure to glare. METHODS: To compare contrast sensitivity and visual recovery-time after exposure to glare in eyes (n=20) from 20 type 1 diabetic patients treated with panretinal photocoagulation for proliferative retinopathy with eyes (n= 19) from 19 un-treated type 1 diabetic patients. Contrast sensitivity was tested with a low contrast acuity chart, before and during exposure to either a uniform background illumination or a spotlight. Visual recovery time was defined as the time required to regain baseline visual acuity during light exposure. RESULTS: Contrast thresholds values were higher in eyes treated... (More)
PURPOSE: To study patients treated with panretinal photocoagulation regarding contrast sensitivity and visual recovery time after exposure to glare. METHODS: To compare contrast sensitivity and visual recovery-time after exposure to glare in eyes (n=20) from 20 type 1 diabetic patients treated with panretinal photocoagulation for proliferative retinopathy with eyes (n= 19) from 19 un-treated type 1 diabetic patients. Contrast sensitivity was tested with a low contrast acuity chart, before and during exposure to either a uniform background illumination or a spotlight. Visual recovery time was defined as the time required to regain baseline visual acuity during light exposure. RESULTS: Contrast thresholds values were higher in eyes treated with panretinal photocoagulation compared to un-treated eyes before illumination 4.2 +/- 1.2% vs. 3.1 +/- 1.7% (p=0.006), during background illumination 5.8 +/- 5.1% vs. 3.9 +/- 4.8% (p=0.001), and during spotlight exposure 5.6 +/- 2.2% vs. 3.2 +/- 1.8% (p<0.001). Furthermore, recovery time was longer both during background illumination, 20; 5-50 sec vs. 2; 2-80 sec. (md;range), (p<0.001) and during spotlight illumination 27; 5-70 sec vs. 2;1-60 sec. (md;range) (p<0.001). CONCLUSION: Eyes treated with panretinal photocoagulation had higher contrast threshold levels at baseline and during glare, as well as a prolonged visual recovery time compared to un-treated eyes with mild background retinopathy. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
contrast sensitivity, glare, panretinal photocoagulation, diabetes, visual recovery time
in
Acta Ophthalmologica Scandinavica1998-01-01+01:002008-01-01+01:00
volume
78
issue
6
pages
672 - 676
publisher
Wiley-Blackwell
external identifiers
  • pmid:11167230
  • scopus:0033675431
ISSN
1395-3907
language
English
LU publication?
yes
id
5cca02e7-1720-4cff-86b4-8e346924466b (old id 1116179)
alternative location
http://www.ingentaconnect.com/content/mksg/aos/2000/00000078/00000006/art00014
date added to LUP
2008-07-01 09:25:55
date last changed
2017-09-17 07:10:09
@article{5cca02e7-1720-4cff-86b4-8e346924466b,
  abstract     = {PURPOSE: To study patients treated with panretinal photocoagulation regarding contrast sensitivity and visual recovery time after exposure to glare. METHODS: To compare contrast sensitivity and visual recovery-time after exposure to glare in eyes (n=20) from 20 type 1 diabetic patients treated with panretinal photocoagulation for proliferative retinopathy with eyes (n= 19) from 19 un-treated type 1 diabetic patients. Contrast sensitivity was tested with a low contrast acuity chart, before and during exposure to either a uniform background illumination or a spotlight. Visual recovery time was defined as the time required to regain baseline visual acuity during light exposure. RESULTS: Contrast thresholds values were higher in eyes treated with panretinal photocoagulation compared to un-treated eyes before illumination 4.2 +/- 1.2% vs. 3.1 +/- 1.7% (p=0.006), during background illumination 5.8 +/- 5.1% vs. 3.9 +/- 4.8% (p=0.001), and during spotlight exposure 5.6 +/- 2.2% vs. 3.2 +/- 1.8% (p&lt;0.001). Furthermore, recovery time was longer both during background illumination, 20; 5-50 sec vs. 2; 2-80 sec. (md;range), (p&lt;0.001) and during spotlight illumination 27; 5-70 sec vs. 2;1-60 sec. (md;range) (p&lt;0.001). CONCLUSION: Eyes treated with panretinal photocoagulation had higher contrast threshold levels at baseline and during glare, as well as a prolonged visual recovery time compared to un-treated eyes with mild background retinopathy.},
  author       = {Lövestam Adrian, Monica and Svendenius, Nils and Agardh, Elisabet},
  issn         = {1395-3907},
  keyword      = {contrast sensitivity,glare,panretinal photocoagulation,diabetes,visual recovery time},
  language     = {eng},
  number       = {6},
  pages        = {672--676},
  publisher    = {Wiley-Blackwell},
  series       = {Acta Ophthalmologica Scandinavica1998-01-01+01:002008-01-01+01:00},
  title        = {Contrast sensitivity and visual recovery time in diabetic patients treated with panretinal photocoagulation},
  volume       = {78},
  year         = {2000},
}