Clinical Features of Primary Rhegmatogenous Retinal Detachment According to Initial Intraocular Pressure

Sung Il Kang; Chong Eun Lee; Yu Cheol Kim

doi:10.3341/jkos.2019.60.5.440

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Kang, Lee, and Kim: Clinical Features of Primary Rhegmatogenous Retinal Detachment According to Initial Intraocular Pressure

Original Article

Journal of the Korean Ophthalmological Society 2019; 60(5): 440-446.

Published online: 15 May 2019

DOI: https://doi.org/10.3341/jkos.2019.60.5.440

Clinical Features of Primary Rhegmatogenous Retinal Detachment According to Initial Intraocular Pressure

Sung Il Kang, MD, Chong Eun Lee, MD, PhD, Yu Cheol Kim, MD, PhD

Department of Ophthalmology, Keimyung University School of Medicine, Daegu, Korea.

Address reprint requests to Yu Cheol Kim, MD, PhD. Department of Ophthalmology, Dongsan Medical Center, #56 Dalseong-ro, Jung-gu, Daegu 41931, Korea. Tel: 82-53-250-7702, Fax: 82-53-250-7705, eyedoctor@dsmc.or.kr

Received 25 October 2018 Revised 23 December 2018 Accepted 17 April 2019

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 determine the correlations of intraocular pressure (IOP) with risk factors in rhegmatogenous retinal detachment (RRD) patients.

Methods

A total of 113 eyes in 113 consecutive patients with RRD were enrolled in this study. IOP was measured using applanation tonometry at the initial visit. Based on the difference in IOP between the affected and unaffected eyes, the subjects were divided into two groups: group 1 (IOP difference ≤ 2 mmHg) and group 2 (IOP difference > 2 mmHg). Correlations between the IOP and RRD morphology, visual acuity (VA), best-corrected VA (BCVA), retinal break size and location, range of retinal detachment, macular involvement, and proliferative vitreoretinopathy were analyzed.

Results

The IOP at the initial visit was 12.88 ± 3.2 mmHg in the affected eyes and 14.27 ± 2.5 mmHg in the unaffected eyes. The IOP difference between the affected and unaffected eyes was −1.40 ± 2.82 mmHg. The BCVA and range of retinal detachment showed statistically significant differences between groups 1 and 2.

Conclusions

In patients with RRD, the IOP difference compared to the unaffected eye was correlated with the extent of area of retinal detachment and decreased BCVA.

Keywords: Intraocular pressure, Rhegmatogenous retinal detachment

Figures and Tables

Figure 1

Detachment chart. Outer circle represents ora serrata and inner circle represents equator of the globe. Each 12 perpendicular black line indicates 30 degrees. Using the blue lines which indicates 45 degrees, we describe the extent of detachment in 8 regions (superior, superotemporal, temporal, inferotemporal, inferior, inferonasal, nasal, superonasal).

Figure 2

Distribution of the largest retinal tear position. Group 1, the total of 52 eyes were involved. Group 2, the total of 61 eyes were involved. The difference of distribution between the two groups was not statistically significant (p = 0.626, chi square test).

Table 1

Baseline demographics and clinical characteristics of the study subjects

Values are presented as mean ± standard deviation unless otherwise indicated.

LogMAR = the logarithm of the minimal angle resolution; VA = visual acuity; BCVA = best corrected visual acuity; IOP = intraocular pressure; DD = disc diameter.

^*Student t-test; ^†chi-square test; ^‡significant difference between groups.

Table 2

Comparison of retinal detachment extent between both groups

Values are presented as n (%).

Q = quadrant.

^*Chi-square test. Significant difference between groups.

Table 3

Comparison of the affected eye, macula status and proliferative vitreoretinopathy between both groups

PVR = proliferative vitreoretinopathy; OD = oculus dexter; OS = oculus sinister.

^*Significant difference between groups; ^†chi-square test.

Table 4

Correlations between intraocular pressures of the affected eye with other factors

IOP = intraocular pressure; VA = visual acuity; BCVA = best corrected visual acuity.

^*Person's correlation test; ^†significant difference between groups.

Notes

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

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