Keywords
Mácula lútea
Tomografía óptica
Pronóstico Vitrectomy
Macula lutea
Tomography
0ptical
Prognosis
How to Cite
Abstract
Purpose: To determine prognostic factors, macular morphology and nerve fiber ganglion layer changes after pars plana vitrectomy, at Fundación Oftalmológica Nacional. Methodology: Before and after pars plana vitrectomy (3 and 6 months) longitudinal study involving patients with epiretinal membrane, macular hole, macular vitreous traction syndrome and noninflammatory vitreous opacities. Clinical and optic coherence tomography monitoring were done. Results: Sixty patients (65.0% women), with average age of 65.45+9.49 years, and mean disease duration of 23+29.79months. The indications for pars plana vitrectomy (n=60 eyes) were macular hole (38.3%) and epiretinal membrane (36.7%). Significant difference was observed in the thickness of ganglion cell layer +inner plexiform layer complex at baseline and third month (p=0.039), correlation between complex at third and sixth months (r=0.704,p<0.001) and complex at third month with central foveal thickness at third and sixth months (r=–0.594,p<0.001 and r=–0.595,p=0.001). Patients older than 65 years have less ganglion cell layer thickness at six months (r=-0.528,p=0.007). Ganglion cellular fiber layer average thickness and the presence of ellipsoid layer were baseline predictors of good visual acuity after pars plana vitrectomy (r2=0.414,p=0.018, and r2=0.414,p=0.010). Conclusion: Ganglion cellular nerve fiber layer thickness and the presence of the ellipsoid zone at baseline are highly predictive of good visual acuity at the third postoperative month of pars plana vitrectomy and there is an inverse correlation between complex with central foveal thickness at third and sixth months after pars plana vitrectomy.
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