ArticleIndian journal of ophthalmology2014
Preoperative corneal astigmatism among adult patients with cataract in Northern Nigeria.
Article in Indian journal of ophthalmology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
8 citing papers in PubMed, 19 citations in OpenAlex.
- Frequency and Age-Related Changes in Corneal Astigmatism in Cataract Surgery Candidates at a Training Hospital in Turkey.Medicina (Kaunas, Lithuania) · 2026Observational
- Prevalence of Astigmatism in Patients Undergoing Cataract Surgery at a Tertiary Care Center in North India.Clinical ophthalmology (Auckland, N.Z.) · 2021Article
- Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Western China.Journal of ophthalmology · 2020Article
- Evaluation of biometry and corneal astigmatism in cataract surgery patients in Northern United Arab Emirates.International ophthalmology · 2019Article
- Corneal astigmatism in cataract surgery patients from Bosnia and Herzegovina.International ophthalmology · 2019Article
- Prevalence of corneal astigmatism before cataract surgery in Western Indian Population.Medical journal, Armed Forces India · 2018Article
- Prevalence of corneal astigmatism before cataract surgery in Indian population.International ophthalmology · 2017Article
- Prevalence of corneal astigmatism before cataract surgery.International ophthalmology · 2016Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The prevalence and nature of corneal astigmatism among patients with cataract has not been well-documented in the resident African population. This retrospective study was undertaken to investigate preexisting corneal astigmatism in adult patients with cataract. We analyzed keratometric readings acquired by manual Javal-Schiotz keratometry before surgery between January 1, 2011 and December 31, 2011. There were 3,169 patients (3286 eyes) aged between 16 and 110 years involved with a Male to female ratio of 1.4:1. Mean keratometry in diopters was K1 = 43.99 and K2 = 43.80. Mean corneal astigmatism was 1.16 diopter and a majority (45.92%) of eyes had astigmatism between 1.00 and 1.99 diopters. Two-thirds of the eyes (66.9%) in this study had preoperative corneal astigmatism equal to or above 1.00 diopter. Findings will help local cataract surgeons to estimate the potential demand for toric intraocular lenses.
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Registered trials
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