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PDF Real-world visual outcomes of cataract surgery based on

► Cataract remains the leading cause of global blindness The quantity of cataract surgery keeps increasing in recent decades but the quality of cataract surgery could vary remarkably

PDF Cataract What You Should Know

About Cataracts What is a cataract? cataract is a clouding of the lens in the eye that affects vision Most cataracts are related to aging Cataracts are very common in older people By age 80 more than half of all Americans have either a cataract or have had cataract surgery cataract can occur in either or both eyes

  • How many cataract operations are performed per year?

    The number of cataract operations performed per year, per million population is called the Cataract Surgical Rate (CSR). The CSR for the six WHO/IAPB regions in 1997 are estimated in Table 1. Economically well-developed countries usually perform between 4000 and 6000 cataract operations per million population per year.

  • What is a 'operable' cataract?

    The term ‘operable’ cataract is used to define a cataract where the patient and the surgeon agree to proceed with cataract surgery. The indication for cataract surgery depends on various factors, including the expectations of the patient and the likely visual result of the procedure.

  • How to reduce the backlog of cataract blindness and 'operable' cataract?

    In order to reduce the backlog of cataract blindness and ‘operable’ cataract it is necessary to operate each year on at least as many eyes as develop cataract (Fig. 2 ). The number of cataract operations performed per year, per million population is called the Cataract Surgical Rate (CSR).

  • What is cataract surgical rate?

    Published online 2018 Feb 8. Cataract remains the largest cause of blindness worldwide. Cataract surgical rate, or CSR, measures how many cataract operations are performed per million population in a given year. The map shows the latest available data taken from the IAPB atlas.

What is already known on this topic?

► Cataract remains the leading cause of global blindness. The quantity of cataract surgery keeps increasing in recent decades, but the quality of cataract surgery could vary remarkably. bjo.bmj.com

What this study adds?

► Based on a systematic review of all population- based studies reporting vision- related outcomes after cataract surgery published in the past 15 years, we identified substantial differences in the type of cataract surgery, postoperative vision as well as causes for postoperative visual impairment within and among different countries and regions.

Eligibility criteria for considering studies for this review

We included population- based studies reporting vision- related outcomes after cataract surgery. Only full- text original studies published in English were included. Unpublished studies and meeting abstracts were not included due to uncertainty of meth-odological quality. Studies evaluating cataract surgical outcomes other than VA were further excl

Study selection

To identify relevant studies, retrieved articles were exported to Endnote (V.X9, Clarivate Analytics). After removing duplicates from the initial search, the titles and abstracts of the articles were screened by JZ and XH, independently. Full- text screening was performed subsequently to further exclude articles that did not meet the inclusion crit

Outcomes of cataract surgery in population- based cross- sectional studies in high- income countries

First authorYearRegionParticipants Age (years) Gender (F/M)Patients/eyes* Examination time bjo.bmj.com

Outcomes of cataract surgery in population- based cohort studies

Gender Examination Type of cataract Duration since cataract bjo.bmj.com

CONCLUSION

We provided a comprehensive and systematic review of visual outcomes after cataract surgery based on population- based studies worldwide during the previous 15 years. The reported visual outcomes were less ideal based on the WHO recommenda-tion criteria, especially in LMICs. Significant inequalities in cata-ract surgery quality were observed within

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