SciELO - Scientific Electronic Library Online

 
vol.40 issue1Harlequin color change in a newborn who was positive for COVID-19: report of a caseStereotaxic gamma knife radiosurgery in a patient with cerebral cavernoma and Evans syndrome author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

  • Have no cited articlesCited by SciELO

Related links

  • Have no similar articlesSimilars in SciELO

Share


Acta Médica Peruana

On-line version ISSN 1728-5917

Abstract

ARMAS HERRERA, Gioconda Lourdes; AREVALO AREVALO, Luis Felipe  and  ARENAS ARCHILA, Eduardo. Insect bite in the cornea, report of a case. Acta méd. Peru [online]. 2023, vol.40, n.1, pp.66-69.  Epub May 09, 2023. ISSN 1728-5917.  http://dx.doi.org/10.35663/amp.2023.401.2434.

Introduction

: It is very important to consider that the toxin present in wasp venom may lead to a severe reaction damaging visual function. This is the reason why we present the following case.

Clinical Picture

: This is a 32-year-old-female who was bitten by a wasp 24 hours ago in her right eye. She had visual acuity reduction, reddening, tearing, pain, and secretion. Her visual acuity was counting fingers at two-meter distance from her right eye and 20/25 in the left eye. Intraocular pressure was 12 and 13. Biomicroscopy showed conjunctival hiperemia with 3+ periciliary injection. There was a foreign body in the cornea towards the stoma, with 3+ edema. There were striae in the right Descemet. Resultados: We took out the foreign body with previous antimicrobial protection including an antibacterial (tobramycin) and a steroid anti-inflammatory compound (prednisolone). Hypertonic solution and mixed lubricants were also administered, including a mixed lubricant, carboxymethylcellulose, and glycerin. One week afterwards, we observed the formation of an anterior capsular opacity with signs of iris atrophy which led to a ‘change of color in the iris’. Two weeks afterwards we observed periciliary vascular dilatation, at 4-hour meridian; and on the third week, the patient had 20/25 visual acuity in both eyes. Her cornea was transparent, there was persistence of iris atrophy, and there was an anterior capsular cataract. Her symptoms subsided.

Conclusiones

: The exact component of wasp venom leading to the described signs is not known. It has been proposed that it may be a compound with parasympathomimetic action, and this has been related with other clinical observations indicating local depigmentation and heterochromia.

Keywords : Insect Bites and Stings; Cornea; Atrophy; Iris; Wasp.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )