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A Journal on Ophthalmology
Minerva Oftalmologica 2012 September;54(3):127-33
Corneal abrasion and prevention in general anesthesia
Montorio D. 1, Breve M. A. 1, Russo V. 2, Vivona L. 2, Vivona G. 2
1 Dipartimento Assistenziale di Oftalmologia, Università degli Studi di Napoli , “Federico II”, Napoli, Italia;
2 Dipartimento Assistenziale di Anestesia, Rianimazione, Terapia Intensiva, Terapia Antalgica e Terapia Iperbarica, Università degli Studi di Napoli, “Federico II”, Napoli, Italia
AIM: The aim of this study was to evaluate the corneal damage that can occur during surgery intervention in general anaesthesia, especially if long, using artificial tears as preventive system.
METHODS: Twenty patients have been selected, aged between 45 and 55 years, all candidates to non-ophthalmologic surgery intervention with general anesthesia. During the intervention, patients’ position was supine and was kept for a long time. Patients were clustered into two groups. One group of patients was treated with lachrymal solutions (artificial tears collyrium). During postoperative time, patients were subjected to ophthalmological consultancy, during which the break up time test (fluorescein test) was performed to assess lachrymal film integrity and the exposition level to corneal traumatic damage.
RESULTS: Fluorescein colored and valued with fissure lamp lachrymal film breaking time was shorter than 10 seconds (risk result) in non-preventive treated subjects with lachrymal solution, while it was considered stable in preventive treated subjects, as it was included between 15 and 20 seconds
CONCLUSION: Corneal damages are frequent ophthalmological complications and are due to long-exposed intraoperative position in general anesthesia. They correspond to an ocular protection defect. Lachrymal solutions are effective against corneal dehydration and consequent corneal abrasion, representing an effective preventive measure in operating seat.