J Korean Ophthalmol Soc.  2019 Oct;60(10):959-965. 10.3341/jkos.2019.60.10.959.

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

• Yoo WS
• Seo JS
• Jeong JS
• Shin MH
• Kim SJ
• Chung IY

• KMID: 2460514
• DOI: http://doi.org/10.3341/jkos.2019.60.10.959

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.

Keyword

Anterior chamber; Posterior capsulotomy; Refractive error; Vitrectomy

MeSH Terms

Anterior Chamber*
Constriction
Humans
Intraocular Pressure
Lenses, Intraocular
Posterior Capsulotomy*
Refractive Errors*
Vitrectomy

Figure

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  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.

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  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.

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  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.

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  Figure 4 Changes of axial length in postoperative 3 months. Axial length showed no changes in postoperative 3 months compared with preoperative.

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  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.

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