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Brief Report |

Exploring Sex and Laterality Imbalances in Patients Undergoing Laser Retinopexy

Omar A. Mahroo, PhD, FRCOphth1,2; Danny Mitry, PhD1; Tom H. Williamson, MD, FRCOphth3; Ashley Shepherd, BSc, MS1; David G. Charteris, FRCOphth1; Robin D. Hamilton, DM, FRCOphth1
[+] Author Affiliations
1Retinal Service, Moorfields Eye Hospital, London, England
2Department of Ophthalmology, King’s College London, St Thomas’ Hospital Campus, London, England
3Department of Ophthalmology, St Thomas’ Hospital, London, England
JAMA Ophthalmol. 2015;133(11):1334-1336. doi:10.1001/jamaophthalmol.2015.2731.
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Importance  Studies have consistently reported a small preponderance of rhegmatogenous retinal detachments in males and in right eyes, which might suggest interesting differences in ocular anatomy relating to sex and laterality. However, an important potential confounding factor is that epidemiologic studies do not consider retinal tears that do not lead to detachment. This study used the electronic patient records from a large eye hospital to explore whether any sex and laterality imbalances were present in patients who underwent laser retinopexy.

Observations  Analysis was conducted from December 1, 2014, to March 1, 2015. Of 6760 patients who underwent retinopexy between May 21, 1996, and October 27, 2014, sex had been recorded for 5854 patients (3346 males and 2508 females) and laterality recorded for 3780 eyes (1990 treatments in the right eye and 1790 in the left eye). The proportion of males was 57.2% (95% CI, 55.9%-58.4%) and the proportion of right eyes was 52.6% (95% CI, 51.1%-54.2%). For sex and laterality, the 95% CIs did not overlap the 50% mark, indicating that the imbalance was likely not owing to chance.

Conclusions and Relevance  Our study showed that laser retinopexy was performed more often in males and in right eyes. This imbalance is in the same direction as that seen for retinal detachments, suggesting that males and right eyes may have an anatomical predisposition toward retinal tears and detachment, possibly related to a slightly greater average axial length.

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