Demographics and ocular biometric characteristics of patients undergoing cataract surgery in Auckland, New Zealand

Yoon, Jinny J.; Misra, Stuti; McGhee, Charles N J; Patel, Dipika V.

doi:10.1111/ceo.12634

Cited by 43 publications

(66 citation statements)

References 32 publications

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“…The Mean Refractive power of the Intra ocular lens required for these cataract eyes was calculated to be 19.34 D ( With a 95% CI between 19.06 and 19.63 D). This is similar to a study from New Zealand that showed a mean IOL power in Asian eyes of 19.45D( 27). It was however smaller than the finding of the study in Pakistan (21.2 D ± 2.35 D)( 28) and Nepal (21.60D ± 1.74)(21).Since It has been a common trend in resource limited countries like ours ( where there is scarcity of A -Scan and Keratometer) to insert the estimated average power of IOL for every cataract eyes, we were interested to know the percentage of patients who could have been subjected to an over plus IOL had…”

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confidence: 90%

Ocular biometry and power of intra ocular lens among cataract patients in rural Eastern Ethiopia

KASSA¹,

GESSESSE

2020

Preprint

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Background : The main objective of the study was to report on the main parameters of ocular biometry and Intra ocular lens power of patients attending a cataract surgical program in Eastern Ethiopia. Methods : The study was a cross sectional study on 765 eyes which were legible for cataract surgery during a mass eye camp conducted from April 04 to April 10, 2018 at Bisidimo Hospital,Eastern Ethiopia.Ocular biometric parameters such as axial length (AL), anterior chamber depth (ACD), mean corneal curvature (MCC) were measured using automated keratorefractometer(Retinomax) and Sonomed A - Scan. Analysis of variance and multivariate analysis were done to determine association of ocular biometry components with socio demography of the study subjects. Results : A total of 765 eyes were enrolled in this study. The mean corneal curvature and the mean anterior chamber depth were found to be 7.61 mm and 2.88mm respectively. The mean axial length was estimated to be 22.98 mm. The mean refractive power of Intra ocular lenses was calculated to be 19.34D. The mean axial length in females was shorter than that of males by 0.24 and this was statistically significant ( P - value = 0.01). Under multiple linear regression model gender had a statistically significant impact on the axial length. The mean Anterior chamber depth in males was also larger than that of females by nearly 0.1 and this was statistically significant (P - value = 0.001). Under multiple linear regression model both age and gender had a statistically significant impact on the anterior chamber depth. There was no a statistically significant difference on the mean Intra ocular lens power required for male and female patients.Conclusion : This study is the first of its kind to provide a larger population based normative data on the most important parameters of ocular biometry in Ethiopia.The female sex was a strong predictor of small axial length and shallow anterior chamber. Increasing age had no effect on the axial length but was found to be a stronger predictor of shallow anterior chamber. Key words : Axial length, Anterior chamber depth, Corneal curvature, Intra ocular lens.

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confidence: 90%

Ocular biometry and power of intra ocular lens among cataract patients in rural Eastern Ethiopia

KASSA¹,

GESSESSE

2020

Preprint

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“…This may be related to more advanced cataracts as evidenced by Yoon et al who reported that the axial length was difficult to measure in Maori and Pacific Island Nations because of advanced cataracts. 11 Indians also presented at a younger age than NZ Europeans/Europeans. These presentations may relate to the ethnic variation in risk factors such as diabetes and smoking in New Zealand 12 and highlight the need for early intervention in highly prevalent but modifiable risk factors for cataract.…”

Section: Discussionmentioning

confidence: 90%

“…Maori and Pacific Island Nations presented for surgery at an earlier age than NZ Europeans/Europeans, as reported previously but with poorer preoperative BMVA. This may be related to more advanced cataracts as evidenced by Yoon et al who reported that the axial length was difficult to measure in Maori and Pacific Island Nations because of advanced cataracts . Indians also presented at a younger age than NZ Europeans/Europeans.…”

Section: Discussionmentioning

confidence: 97%

Auckland cataract study 2: clinical outcomes of phacoemulsification cataract surgery in a public teaching hospital

Kim

Patel

McGhee

2017

Clinical Exper Ophthalmology

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This study reports current phacoemulsification surgery outcomes in a major public teaching institution. A large proportion of patients exhibited systemic and ocular comorbidities, relatively dense cataracts and poor presenting visual acuity. However, visual outcomes and intraoperative complication rates were not statistically different between trainees and senior surgeons. Generally, outcomes reflect international standards and have improved since the last comparable study in this region.

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“…The only disproportionately low risk factor for PCR‐VL in Maori patients was glaucoma. Interestingly, one other study has also reported low rates of glaucoma in Maori populations, although the reasons for this remain unclear …”

Section: Prevalence Of Risk Factors For Pcr‐vl (Nz)mentioning

confidence: 99%

Applying risk analysis to predict posterior capsule rupture during cataract surgery in New Zealand

McKelvie

Laurent

2016

Clinical Exper Ophthalmology

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Demographics and ocular biometric characteristics of patients undergoing cataract surgery in Auckland, New Zealand

Abstract: Background: The aim is to investigate ethnic variation, in presentation and biometric parameters, within the population undergoing cataract surgery in Auckland.

Cited by 43 publications

References 32 publications

Ocular biometry and power of intra ocular lens among cataract patients in rural Eastern Ethiopia

Ocular biometry and power of intra ocular lens among cataract patients in rural Eastern Ethiopia

Auckland cataract study 2: clinical outcomes of phacoemulsification cataract surgery in a public teaching hospital

Applying risk analysis to predict posterior capsule rupture during cataract surgery in New Zealand

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