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Journal Information
Vol. 88. Issue 3.
Pages 92-96 (March 2013)
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Vol. 88. Issue 3.
Pages 92-96 (March 2013)
Original article
Prescribing prophylactic antibiotics to users of therapeutic contact lenses
Pertinencia de prescribir antibióticos profilácticos en usuarios de lentes de contacto terapéuticas
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J. Colomé-Camposa,
Corresponding author
colomecampos@terra.es

Corresponding author.
, L. Quevedo-Junyentb, N. Godoy-Barredaa, I. Martínez-Salcedoa, P. Romero-Arocac
a Hospital Comarcal de Mora, Mora d’Ebre, Spain
b Departamento de Optometría, Universitat Politécnica de Catalunya, Terrassa, Spain
c Hospital Universitario San Juan, Reus, Spain
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Statistics
Tables (4)
Table 1. Bacterial adhesion of Staplylococcus epidermidis to various contact lens types.
Table 2. Germ resistance rates to antibiotics in our health region during 2010.
Table 3. Contingency table to study the relationship between the qualitative variables of contact lens use and bacterial contamination.
Table 4. Utilization of prophylactic antibiotics in therapeutic contact lens users.
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Abstract
Background

To describe the benefits and optimum use of prophylactic antibiotics in users of therapeutic contact lenses (TCL).

Methods

A microbiological study was carried out on samples from 33 patients who continuously wore TCL. The resistance to antibiotics of bacteria isolated in our health region was also reviewed. An assessment was also made on whether there were microorganisms of a higher pathogenic potential in TCL than conventional contact lenses, as reported in the literature.

Results

No bacteria were isolated from 17 (52%) of the 33 lenses studied. From the 16 (48%) remaining lenses, coagulase negative Staphylococci were isolated from 10 (62%), Propionibacterium acnes from 4 (25%), and Corynebacterium from 2 (13%).

Conclusions

The high number of negative cultures and the presence of saprophytic bacteria indicate that prophylactic antibiotic treatment is not precise. The most frequent pathogenic bacteria found in contact lenses are strongly resistant to the current commercially available antibiotics.

Keywords:
Contact lenses
Cornea
Drugs
Ocular disease
Visual acuity
Resumen
Objetivos

Conocer la pertinencia o no de prescribir antibióticos profilácticos en usuarios de lentes de contacto terapéuticas (LCT).

Métodos

Se procedió a realizar un estudio microbiológico sobre 33 LCT de 33 pacientes portadores de LCT. Se valoraron las resistencias de los gérmenes aislados a los antibióticos a partir de los estudios publicados en nuestra región sanitaria durante el año 2010. Valoramos lo mismo en el supuesto que las LCT se encontraran contaminadas por los gérmenes con mayor potencial patógeno según la literatura médica en usuarios de lentes de contacto convencionales.

Resultados

De las 33 LCT estudiadas en 17 (52%) no se aisló ningún germen. En las 16 LCT restantes (48%) se aisló en 10 (62%) Staphylococcus coagulasa negativo, en 4 (25%) Propionibacterium acnes y en 2 (13%) Corynebacterium.

Conclusiones

El elevado número de cultivos negativos y la presencia de gérmenes saprofitos indican que no es preciso el tratamiento antibiótico profiláctico. Los gérmenes con mayor potencial patógeno en usuarios de lentes de contacto presentan severas resistencias a los antibióticos comercializados en forma de colirio.

Palabras clave:
Lentes de contacto
Córnea
Colirios
Enfermedad ocular
Agudeza visual

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