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Relationship between preoperative axial length and myopic shift over 3 years after congenital cataract surgery with primary intraocular lens implantation at the National Institute of Ophthalmology of Peru, 2007–2011

Authors Valera Cornejo DA, Flores Boza A

Received 26 September 2017

Accepted for publication 13 December 2017

Published 23 February 2018 Volume 2018:12 Pages 395—399


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser

Diego Alejandro Valera Cornejo,1 Abel Flores Boza2

1Research Department, Vista Clinic, 2Pediatric Ophthalmology Department, National Institute of Ophthalmology of Peru, Lima, Peru

To determine the relationship between the preoperative axial length and the myopic shift over 3 years after congenital cataract surgery with primary intraocular lens implantation and other related factors.
Methods: In this retrospective cohort study, the axial length was measured and assigned into 2 groups (>21.5 mm and ≤21.5 mm), visual axis obscuration, laterality of cataract, age of surgery and follow-up time were assessed and compared to the myopic shift.
Results: The mean myopic shift was 3.6 (standard deviation [SD]: 2.3) diopters (D) in all patients; 3.2 (3.3) and 3.9 (3.2) D for each group respectively (p=0.359). In unilateral cataracts the mean myopic shift was 6.3 D and in bilateral cases was 3.0 D (p=0.001). In bilateral cataracts, the shift was 2.6 D (SD: 2.0) and 3.4 D (SD: 1.8), respectively (p=0.098).
Conclusion: There was no relationship between the initial axial length and the myopic shift in all patients. Unilateral cataracts had a greater myopic shift over 3 years.

axial length, eye, refraction, ocular, cataract, congenital, pseudophakia, child

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