Veitía RZA, García RL, Bauza FY, Pérez CEC, Rodríguez SB, Méndez DEAM

Language: Spanish
References: 13
Page: 189-196
PDF size: 117.80 Kb.

ABSTRACT

Objective: to describe with the confocal microscopy the morphological and morphometric changes occurred in the corneal tissues exposed to silicone oil in vitrectomized patients before and after cataract surgery.
Methods: a prospective, descriptive, longitudinal and observational study was carried out in 34 eyes of patients operated on for cataract by phacoemulsification using the phacochop technique for clear cornea. These patients had been previously vitrectomized in anterior chamber with 1 000 centistoke emulsified silicone oil and had been performed confocal microscopy with 4th generation confocal microscope CONFOSCAN-S-4 NIDEK before and after cataract surgery in the period of February to December 2012.
Results: males prevailed (64.7 %). The highest number of cases aged 39 to 58 years (47 %). The endothelial cell density was lower at upper level than at central level of the cornea, which agreed with the most exposed area to silicone oil after pars-plana vitrectomy and after cataract surgery. The average cell loss was 358 cell/mm2 (14.7 %). Pleomorphism and polymegatism values were pathological after the sequential surgery. There were concomitant endothelial injuries observed in 100% of cases.
Conclusions: The confocal microscopy is a greatly effective innovative tool for the detection and follow-up of initial changes in the corneal endothelium that remains in contact with the emulsified silicone oil in vitrectomized patients before the onset of clinical signs of keratopathy.

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