Brief Answer: No problem will occur no need to worry. Detailed Answer: Hello Welcome to Health care Magic Iam Dr. Dadapeer K, an ophthalmologist and I answer health problems related to eye. It seems from the history that a healthy boy has applied lumigan eye drop inadvertantly. Lumigan as you have mentioned is used for treatment of glaucoma and it contains Bimatoprost a prostaglandin analogue and it is used to decrease intraocular pressure. A single application will not lead to any problems and the active half life is only 45 minutes and by within one hour the drug will be eliminated from the eye. Hence no need to worry. Rarely if a person is allergic to the drug it can cause redness and irritation of the eyes. If there is redness or irritation of the eyes need to wash the eyes with saline or water and need to use artificial tears eye drops. Since no symptoms suggestive of allergy to the drugs are present, there is no need to worry. Hope I have answered your question and the information is helpful to you. Thank you

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