The Changes of Anterior Chamber Depth and Refractive Errors after Phacovitrectomy with Posterior Capsulotomy

Woong-Sun Yoo; Jin-Seok Seo; Ji-Sung Jeong; Min-Ho Shin; Seong-Jae Kim; In Young Chung

doi:10.3341/jkos.2019.60.10.959

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Yoo, Seo, Jeong, Shin, Kim, and Chung: The Changes of Anterior Chamber Depth and Refractive Errors after Phacovitrectomy with Posterior Capsulotomy

Original Article

Journal of the Korean Ophthalmological Society 2019; 60(10): 959-965.

Published online: 21 October 2019

DOI: https://doi.org/10.3341/jkos.2019.60.10.959

The Changes of Anterior Chamber Depth and Refractive Errors after Phacovitrectomy with Posterior Capsulotomy

Woong-Sun Yoo, MD^1,^2,³, Jin-Seok Seo, MD^1,², Ji-Sung Jeong, MD^1,², Min-Ho Shin, MD⁴, Seong-Jae Kim, MD, PhD^1,^2,³, In Young Chung, MD, PhD^1,^2,³

¹Department of Ophthalmology, Gyeongsang National University College of Medicine, Jinju, Korea.

²Department of Ophthalmology, Gyeongsang National University Hospital, Jinju, Korea.

³Health Science Institute, Gyeongsang National University, Jinju, Korea.

⁴Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Korea.

Address reprint requests to In Young Chung, MD, PhD. Department of Ophthalmology, Gyeongsang National University Hospital, #79 Gangnam-ro, Jinju 52727, Korea. Tel: 82-55-750-8171, Fax: 82-55-758-4158, in0chung@hanmail.net

Received 3 January 2019 Revised 24 February 2019 Accepted 24 September 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 evaluate the changes in anterior chamber depth (ACD) and refractive error after combined phacovitrectomy with posterior capsulotomy using a vitrectomy probe.

Methods

In 20 eyes of 20 patients who underwent combined phacovitrectomy with posterior capsulotomy using a vitrectomy probe, the ACD was measured with Scheimpflug imaging (Pentacam®, OCULUS Optikgeräte GmbH, Wetzlar, Germany) preoperatively and postoperatively. We compared the preoperative desired refraction and postoperative refraction using an autokeratorefractometor.

Results

The preoperative ACD was 2.58 ± 0.248 mm; the ACD significantly increased in 1 month postoperatively to 3.65 ± 0.475 mm (p < 0.001), and it was maintained as 3.70 ± 0.452 mm (p = 0.213) at 3 months postoperatively. The preoperative target spherical equivalent was −0.60 ± 0.809 diopters (D). Myopic shifting was noticed at 1 month postoperatively as −1.45 ± 1.252 D, and it changed between 1 month and 3 months postoperatively (−1.48 ± 1.235 D at 3 months postoperatively was not statistically significant). There was no increased intraocular pressure or intraocular lens-related complication.

Conclusions

Phacovitrectomy with posterior capsulotomy using a vitrectomy probe might be a useful way to stabilize the axial position of an intraocular lens without constriction of the capsular bag. However, using this procedure, the surgeon must consider the possibility of myopic shifting in the postoperative refractive error.

Keywords: Anterior chamber, Posterior capsulotomy, Refractive error, Vitrectomy

Figures and Tables

Figure 1

Changes of best corrected visual acuity (BCVA) logarithm of minimal angle of resolution in postoperative 1 month and 3 months. BCVA increased statistically significant in postoperative 1 month, and it maintained in postoperative 3 months. LogMAR = logarithm of minimal angle of resolution.

Figure 2

Changes of intraocular pressure (IOP) in postoperative 1 month and 3 months. IOP has no significant differences between preoperative and postoperative 1 month and 3 months.

Figure 3

Changes of anterior chamber depth (ACD) in postoperative 1 month and 3 months. ACD showed statistically increased in postoperative 1 month and it maintained until 3 months.

Figure 4

Changes of axial length in postoperative 3 months. Axial length showed no changes in postoperative 3 months compared with preoperative.

Figure 5

Changes of refractory error in postoperative 1 month and 3 months. Postoperative 1 month and 3 months revealed statistically significant myopic shifting compared with preoperative target spherical equivalent.

Table 1

Baseline characteristic of patients

Values are presented as mean ± standard deviation or number (%).

PDR = proliferative diabetic retinopathy.

Table 2

Comparison of CST, ACD, axial length and SE in preoperative and postoperative 3 months between diagnoses

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

CST = central subfield thickness; ACD = anterior chamber depth; SE = spherical equivalent; ERM = epiretinal membrane; PDR = proliferative diabetic retinopathy; D = diopter.

^*p-value was calculated by analysis of variance.

Table 3

Changes of BCVA, IOP, ACD, axial length and SE in postoperative 1 month and 3 months

Values are presented as mean ± standard deviation.

BCVA = best corrected visual acuity; IOP = intraocular pressure; ACD = anterior chamber depth; logMAR = logarithm of minimal angle of resolution; SE = spherical equivalent; D = diopter; N/A = not associated.

^*Target spherical equivalent.

Notes

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

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