The Incidence and Risk Factors for Ocular Hypertension in Traumatic Hyphema

Moon Kyeong Shin; Ji Young Suh; Sang Wook Jin

doi:10.3341/jkos.2018.59.8.773

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Shin, Suh, and Jin: The Incidence and Risk Factors for Ocular Hypertension in Traumatic Hyphema

Original Article

Journal of the Korean Ophthalmological Society 2018; 59(8): 773-778.

Published online: 14 August 2018

DOI: https://doi.org/10.3341/jkos.2018.59.8.773

The Incidence and Risk Factors for Ocular Hypertension in Traumatic Hyphema

Moon Kyeong Shin, MD, Ji Young Suh, MD, Sang Wook Jin, MD

Department of Ophthalmology, Dong-A University College of Medicine, Busan, Korea.

Address reprint requests to Sang Wook Jin, MD. Department of Ophthalmology, Dong-A University Hospital, #26 Daesingongwon-ro, Seo-gu, Busan 49201, Korea. Tel: 82-51-240-5227, Fax: 82-51-254-1987, swjin@dau.ac.kr

Received 29 March 2018 Revised 14 May 2018 Accepted 27 July 2018

The Korean Ophthalmological Society

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

To evaluate the incidence and risk factors for ocular hypertension (OHT) in traumatic hyphema within 7 days after trauma.

Methods

A retrospective case series study of 265 traumatic hyphema inpatients from 2010–2016. OHT was defined as intraocular pressure (IOP) that exceeded 21 mmHg using two consecutive measurements by a Goldmann applanation tonometer within 7 days after trauma. The subjects were divided into two groups (OHT group and non-OHT group). Age, sex, best-corrected visual acuity (BCVA), IOP, hyphema grade, presence of systemic disease, and past history of glaucoma were compared between the two groups.

Results

Of the 265 patients, 95 (35.8%) developed OHT after traumatic hyphema. Of those 95 patients, 70 (73.7%) developed OHT within 1 day after trauma; 18 (18.9%) developed OHT 2–3 days after trauma; and 7 (7.4%) developed OHT 4–7 days after trauma. Compared to the non-OHT group, the OHT group had a lower visual acuity (p = 0.018) and higher IOP (p < 0.001). In addition. if the hyphema grade was higher the incidence of OHT was significantly higher (p = 0.017). Using multivariate logistic regression analysis, the BCVA (p = 0.045) and hyphema grade (p = 0.006) were associated with the incidence of OHT in traumatic hyphema within 7 days after trauma.

Conclusions

The incidence of OHT in traumatic hyphema within 7 days after trauma was 35.8%. The BCVA and hyphema grade were associated with the incidence of OHT within 7 days after trauma.

Keywords: Intraocular pressure, Risk factor, Traumatic hyphema

Figures and Tables

Figure 1

Incidence of ocular hypertension during hospitalization in traumatic hyphema. 73.7% developed ocular hypertension within 1 day after trauma, 18.9% developed between 2–3 days, and 7.4% developed between 4–7 days.

Table 1

Clinical and demographic data of the patients (N = 265)

Values are presented as the mean ± standard deviation or n (%) unless otherwise indicated.

V/A = visual acuity; IOP = intraocular pressure.

Table 2

Comparison between ocular hypertension (OHT) group and non-OHT group

Values are presented as the mean ± standard deviation or n (%) unless otherwise indicated.

V/A = visual acuity; IOP = intraocular pressure.

^*Pearson chi-square test. Statistical significance: p < 0.005; ^†Student t-test. Statistical significance: p < 0.005; ^‡Linear-by-Linear assosiation. Statistical significance: p < 0.005.

Table 3

Association of incidence of ocular hypertension (OHT) with demographic and ocular variables from multivariate logistic regression analysis

OR = odds ratio; CI = confidence interval; V/A = visual acuity; IOP = intraocular pressure.

^*Dummy variables for male: 1 = male, 2 = female; ^†Dummy variables for hypertension and diabetes mellitus: 1 = positive, 2 = negative.

Notes

^{Conflicts of Interest} The authors have no conflicts to disclose.

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