Cataract

2月 25, 2015

The Prevalence of Blindness, Visual Impairment and Cataract Surgery in Tuoketuo and Shangdu Counties, Inner Mongolia, China

Read  full  paper  at:http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54117#.VO2EiyzQrzE

Aim: A population-based survey was conducted in Tuoketuo and Shangdu Counties in Inner Mongolia Autonomous Region, China, in the Autumn of 2010, to assess the prevalence and causes of blindness and visual impairment of people aged 50 years and over. Methods: Random cluster sampling was used to select 82 clusters of 50 residents in the 2 counties. Each survey team included an ophthalmologist, a nurse and a coordinator, who went to door to door in each cluster to identify eligible people. A torch, direct ophthalmoscope and portable slit lamp were used for eye examination. Visual acuity (VA) was tested for each eye of every subject. Those with VA below 6/18 in either eye were examined and causes identified. Results: The survey identified a prevalence of blindness in people aged 50+ in Tuoketuo of 1.2% (95% Confidence Interval: 0.7% – 1.7%) and in Shangdu of 1.4% (95% CI: 1.0% – 1.9%). Cataract was identified as the leading cause of blindness (BL) and severe visual impairment (SVI), and uncorrected refractive errors were the major causes of moderate visual impairment (MVI) in both counties. Over two thirds of blindness, SVI and MVI were identified as avoidable. Conclusions: The prevalence of blindness in people aged 50+ in Tuoketuo and Shangdu was low compared to other studies conducted in China [1] [2]. The prevalence of blindness of people aged 50 years and over could be reduced by up to two thirds through better eye services in the two study areas.

Cite this paper

Xiao, B. , Yi, J. , Limburg, H. , Zhang, G. , Mesurier, R. , Müller, A. , Congdon, N. and Iezzi, B. (2015) The Prevalence of Blindness, Visual Impairment and Cataract Surgery in Tuoketuo and Shangdu Counties, Inner Mongolia, China. Open Journal of Ophthalmology, 5, 23-30. doi: 10.4236/ojoph.2015.51005.

References

[1] Xiao, B., Kuper, H., Guan, C.h., Bailey, C. and Limburg, H. (2010) Rapid Assessment of Avoidable Blindness in Three Counties, Jiangxi Province, China. British Journal of Ophthalmology, 94, 1437-1442.
http://dx.doi.org/10.1136/bjo.2009.165308
[2] Zhao, J.L., Ellwein, L.B., et al. (2010) Prevalence of Vision Impairment in Older Adults in Rural China, the China Nine-Province Survey. The American Academy of Ophtalmology, 117, 409-416.
http://dx.doi.org/10.1016/j.ophtha.2009.11.023
[3] Pascolini, D. and Mariotti, S.P. (2012) Global Estimates of Visual Impairment: 2010. The British Journal of Ophthalmology, 96, 614-618.
http://dx.doi.org/10.1136/bjophthalmol-2011-300539
[4] World Health Organization (2011) The Fact Sheet No. 282. Bulletin of the World Health Organization, April 2011.
[5] (2010) Program and Policy Implications, Today’s Research on Aging. Issue 20.
[6] http://www.nhfpc.gov.cn/
[7] Inner Mongolia Year Book 2005.
[8] Zhang, S.Y., et al. (1992) National Epidemiological Survey of Blindness and Low Vision in China. Chinese Medical Journal, 105, 603-608.
[9] World Health Organization (1988) Coding Instruction for the WHO/PBL Eye Examination Record (Version III), Geneva; WHO. WHO Document, PBL/88.1.
[10] Zhao, J., et al. (2010) Prevalence and Outcomes of Cataract Surgery in Rural China the China Nine-Province Survey. Ophthalmology, 117, 2120-2128.
http://dx.doi.org/10.1016/j.ophtha.2010.03.005
[11] Zhao, J.L., Jia, L.J., Sui, R.F. and Ellwein, L.B. (1998) Prevalence of Blindness and Cataract Surgery in Shunyi County, China. American Journal of Ophthalmology, 126, 506-514.
http://dx.doi.org/10.1016/S0002-9394(98)00275-X
[12] Wu, M., Yip, J.L. and Kuper, H. (2008) Rapid Assessment of Avoidable Blindness in Kunming, China. Ophthalmology, 115, 969-974.
http://dx.doi.org/10.1016/j.ophtha.2007.08.002
[13] Liang, Y.B., et al. (2008) Prevalence and Causes of Low Vision and Blindness in a Rural Chinese Adult Population: The Handan Eye Study. Ophthalmology, 115, 1965-1972.
http://dx.doi.org/10.1016/j.ophtha.2008.05.030
[14] Xu, L., et al. (2006) Prevalence of Visual Impairment among Adults in China: The Beijing Eye Study. American Journal of Ophthalmology, 141, 591-593.
http://dx.doi.org/10.1016/j.ajo.2005.10.018                                         eww150225lx
11月 28, 2014

More than 10 Years of Experience with Immediate Sequential Bilateral Cataract Extraction (ISBCE)—A Retrospective Study

Read  full  paper  at:

http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51839#.VHfGu2fHRK0

ABSTRACT

Background: To evaluate the safety of immediate sequential bilateral cataract extraction (ISBCE) with respect to indications, visual outcomes, complications, benefits and disadvantages. Methods: This is a retrospective review of all ISBCEs performed at Kantonsspital Winterthur, Switzerland, between April 2000 and September 2013. The case notes of 500 eyes of 250 patients were reviewed. Of these 500 eyes, 472 (94.4%) had a straight forward phacoemulsification with posterior chamber intraocular lens implantation; 21 (4.2%) had a planned extracapsular cataract extraction; 4 (0.8%) had an intracapsular cataract extraction and 3 (0.6%) had a combined phacoemulsification with trabeculectomy. Results: Over 66% of eyes achieved improved visual acuity (at least 3 Snellen lines) following ISBCE. Median preoperative best corrected visual acuity (BCVA) was 0.5 LogMAR; the interquartile range was [0.4, 1] LogMAR. At one week control the median BCVA was 0.3 LogMAR, IQR [0.1, 0.5] LogMAR. At one month the median BCVA was 0.15 LogMAR, IQR [0.05, 0.3] (p < 0.01). There were no sight-threatening intraoperative or postoperative complications observed. Conclusions: ISBCE is an effective and safe option with high degree of patient satisfaction. The relative benefits of ISBCE should be balanced against the theoretically enhanced risks.

Cite this paper

Guber, I. , Bergin, C. and Stürmer, J. (2014) More than 10 Years of Experience with Immediate Sequential Bilateral Cataract Extraction (ISBCE)—A Retrospective Study. Open Journal of Ophthalmology, 4, 139-144. doi: 10.4236/ojoph.2014.44022.

References

[1] Jhanji, V., Sharma, N., Prakash, G. and Titiyal, J.S. (2007) Simultaneous Bilateral Cataract Surgery in Developing Countries. Journal of Cataract & Refractive Surgery, 33, 363.
http://dx.doi.org/10.1016/j.jcrs.2006.10.064
[2] Analeyz, Inc. (2012) Survey of US ASCRS Members.
http://www.analeyz.com/NEWAnaleyz%20ASCRS %202012.htm
[3] Arshinoff, S. (2008) Bilateralendophthalmitis after Simultaneous Bilateral Cataract Surgery. Journal of Cataract & Refractive Surgery, 34, 2006-2008.
http://dx.doi.org/10.1016/j.jcrs.2008.08.036
[4] Li, O., Kapetanakis, V. and Claoué, C. (2014) Simultaneous Bilateral Endophthalmitis after Immediate Sequential Bilateral Cataract Surgery: What’s the Risk of Functional Blindness? American Journal of Ophthalmology, 157, 749-751.
http://dx.doi.org/10.1016/j.ajo.2014.01.002
[5] Leivo, T., Sarikkola, A.U., Uusitalo, R.J., Hellstedt, T., Ess, S.L. and Kivelä, T. (2011) Simultaneous Bilateral Cataract Surgery: Economic Analysis; Helsinki Simultaneous Bilateral Cataract Surgery Study Report 2. Journal of Cataract & Refractive Surgery, 37, 1003-1008.
http://dx.doi.org/10.1016/j.jcrs.2010.12.050
[6] Arshinoff, S.A. and Chen, S.H. (2006) Simultaneous Bilateral Cataract Surgery: Financial Differences among Nations and Jurisdictions. Journal of Cataract & Refractive Surgery, 32, 1355-1360.
http://dx.doi.org/10.1016/j.jcrs.2006.02.064
[7] Arshinoff, S.A. (2012) Same-Day Cataract Surgery Should Be the Standard of Care for Patients with Bilateral Visually Significant Cataract. Survey of Ophthalmology, 57, 574-579.
http://dx.doi.org/10.1016/j.survophthal.2012.05.002
[8] Henderson, B.A. and Schneider, J. (2012) Same-Day Cataract Surgery Should Not Be the Standard of Care for Patients with Bilateral Visually Significant Cataract. Survey of Ophthalmology, 57, 580-583.
http://dx.doi.org/10.1016/j.survophthal.2012.05.001
[9] International Society of Bilateral Cataract Surgeons (2013) General Principles for Excellence in iSBCS 2009.
http://www.isbcs.org
[10] Arshinoff, S.A. (2006) Need for Strict Aseptic Separation of the 2 Procedures in Simultaneous Bilateral Cataract Surgery. Journal of Cataract & Refractive Surgery, 32, 376-377.
http://dx.doi.org/10.1016/j.jcrs.2005.12.085
[11] Government of Spain Publication (2006) Seguridad, efectividad y costeefectividadde la cirugía decataratas bilateral y simultáneafrente a la cirugía bilateral decataratas en dos tiempos. Informes de Evaluaciónde Tecnologías SanitariasSESCS Núm.
http://www2.gobiernodecanarias.org/sanidad/scs/content/660372e4-1f33-11e0-964e-
f5f3323ccc4d/2006_05.pdf
[12] Sarikkola, A.U., Kontkanen, M., Kivelä, T. and Laatikainen, L. (2004) Simultaneous Bilateral Cataract Surgery: A Retrospective Survey. Journal of Cataract & Refractive Surgery, 30, 1335-1341.
http://dx.doi.org/10.1016/j.jcrs.2004.02.045
[13] Arshinoff, S.A. and Bastianelli, P.A. (2011) Incidence of Postoperative Endophthalmitis after Immediate Sequential Bilateral Cataract Surgery. Journal of Cataract & Refractive Surgery, 37, 2105-2114.
http://dx.doi.org/10.1016/j.jcrs.2011.06.036
[14] Friling, E., Lundstrom, M., Stenevi, U. and Montan, P. (2013) Six-Year Incidence of Endophthalmitis after Cataract Surgery: Swedish National Study. Journal of Cataract & Refractive Surgery, 39, 15-21.
http://dx.doi.org/10.1016/j.jcrs.2012.10.037
[15] Lundstrom, M., Albrecht, S., Nilsson, M. and Astrom, B. (2006) Benefit to Patients of Bilateral Same-Day Cataract Extraction: Randomized Clinical Study. Journal of Cataract & Refractive Surgery, 32, 826-830.
http://dx.doi.org/10.1016/j.jcrs.2006.01.075
[16] Kim, S.Y., Park, Y.H., Kim, H.S. and Lee, Y.C. (2007) Bilateral Toxic Anterior Segment Syndrome after Cataract Surgery. Canadian Journal of Ophthalmology, 42, 490-491.
http://dx.doi.org/10.3129/i07-067
[17] Neel, S.T. and Cost, A. (2014) Minimization Analysis Comparing Immediate Sequential Cataract Surgery and Delayed Sequential Cataract Surgery from the Payer, Patient, and Societal Perspectives in the United States. JAMA Ophthalmology, Published Online.
http://dx.doi.org/10.1001/jamaophthalmol.2014.2074
[18] Chandra, A. and Claoué, C. (2010) Simultaneous Bilateral Cataract Surgery: A Further Advantage. Eye, 24, 1113-1114.
http://dx.doi.org/10.1038/eye.2009.276                                                                          eww141128lx