Axial Length Analysis in Patients with Retinal Detachment in New Zealand

Patchara Jirapanyayut *

University of Otago, Dunedin, New Zealand.

Francesc March de Ribot

University of Otago, Dunedin, New Zealand.

Jerry Goh

University of Otago, Dunedin, New Zealand.

Anna March de Ribot

University of Otago, Dunedin, New Zealand.

*Author to whom correspondence should be addressed.


Aim: The aim of the study is to analyse the axial length (AL) in patients with rhegmatogenous retinal detachment (RRD) in Dunedin Public Hospital (New Zealand).

Methods: Retrospective analysis was performed on the records of 105 patients who underwent retinal surgery with pars plana vitrectomy (PPV) in Dunedin Public Hospital between 1 January 2020 and 1 January 2022. AL was collected with a Zeiss IOL Master500. Data was compared to matched control groups: Dunedin patients requiring cataract surgery, a previous study of healthy individuals from Dunedin (Dunedin Multidisciplinary Health & Development Study) and an Auckland control group comprising of two publications of patients in Auckland undergoing cataract surgery.

Results: Total data of 108 eyes of 105 patients, of which 42 were female and 63 were male, with an average age of 63.25± 16.40 years (mean ± SD), was included in this study. The mean AL of the patients was 24.30 ± 0.33 mm compared to the control group of 23.48 ± 0.06 mm. The difference in AL between RRD patients and the Auckland control group was 0.82 ± 0.23 mm, p<0.0001. The difference in AL between the RRD and the Dunedin Cataract surgery group was 0.75 ± 0.29, p<0.0001. The difference between male and female mean AL was 0.75 ± 0.67 mm, p < 0.0285.

Conclusion: Patients with RRD have been shown to have a greater AL when compared to those without, with a difference of 0.82 ± 0.23 mm representing approximately 2.2 diopters. Men have a greater mean AL when compared to women, with a difference of 0.75 ± 0.67mm, p < 0.0285 representing approximately 2.0 diopters. 

Keywords: Axial length, rhegmatogenous retinal detachment, retinal detachment, New Zealand Axial length

How to Cite

Jirapanyayut, P., Ribot , F. M. de, Goh , J., & Ribot , A. M. de. (2024). Axial Length Analysis in Patients with Retinal Detachment in New Zealand . Asian Journal of Research and Reports in Ophthalmology, 7(1), 47–52. Retrieved from


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