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Eur J Ophthalmol. 2015 May-Jun;25(3):192-7. doi: 10.5301/ejo.5000536. Epub 2014 Nov 27.

Macular edema after uncomplicated cataract surgery: a role for phacoemulsification energy and vitreoretinal interface status?

Author information

1
Department of Ophthalmology, "424" Military Hospital of Thessaloniki, Thessaloniki - Greece.

Abstract

PURPOSE:

To study postoperative macular thickness fluctuations measured by spectral-domain optical coherence tomography (SD-OCT) and to investigate a potential correlation among macular edema (ME) incidence, cumulative dissipated energy (CDE) released during phacoemulsification, and vitreoretinal interface status.

METHODS:

This is a prospective, cross-sectional study of 106 cataract patients with no macular disorder who underwent phacoemulsification. Best-corrected visual acuity measurement, slit-lamp examination, OCT scans were performed preoperatively and 30 and 90 days postoperatively. The intraoperative parameters measured were CDE and total phacoemulsification time. The SD-OCT parameters assessed were central subfield thickness (CST), cube average thickness (CAT), cube macular volume, vitreoretinal interface status, and presence of cystoid or diffuse ME.

RESULTS:

Four patients (3.8%) developed subclinical ME. Regarding ME, there was no significant difference between patients with presence or absence of posterior vitreous detachment (chi-square, p = 0.57), although 75% of ME cases were observed in patients with attached posterior vitreous. With regard to comparison between eyes with and without subclinical CME incidence, CDE (p = 0.05), phacoemulsification time (p = 0.001), CST at month 1 (p = 0.002), cube macular volume at month 1 (p = 0.039), and CAT at month 1 (p = 0.050) were significantly higher in the subclinical CME group.

CONCLUSIONS:

This study provides evidence that OCT macular thickness parameters increase significantly at first and third month postoperatively and that the incidence of pseudophakic ME can be affected by CDE.

PMID:
25449642
DOI:
10.5301/ejo.5000536
[Indexed for MEDLINE]

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