The term LASER is an acronym for ‘Light Amplification by the Stimulated Emission of Radiation’. Miaman was the first who introduced laser application in dentistry in 1960 and its hard and soft tissue application. There is lot of advancement in lasers in past two decades. Various hard tissue applications includes caries prevention, bleaching, restorative removal and curing, cavity preparation, dentinal hypersensitivity, growth modulation and for diagnostic purposes, whereas soft tissue application includes wound healing, removal of hyperplastic tissue to uncovering of impacted or partially erupted tooth, photodynamic therapy for malignancies, photostimulation of herpetic lesion. Although lasers proves to be slightly costlier than traditional treatment but its an effective tool to increase efficiency, specificity, ease and comfort of the dental treatment.
A 11 year old female was referred from ophthalmology clinic to pulmonary medicine department for further evaluation of a case of unilateral conjunctivitis not responding to treatment as suspected case of conjuctival tuberculosis. In the right eye, bulbar conjunctiva in supranasal quadrant polypoidal appearance was seen and there was subconjunctival cystic nodular mass in the superior conjunctival fornix. Systemic examination was unremarkable. Microbiological and histopathological examination of excision biopsy of the subconjunctival cyst revealed a granulomatous inflammation but acid fast bacilli was negative. Tissue sample was subjected to CBNAAT (Cartridge based nucleic acid amplification technique) examination in which mycobacterium tuberculosis was detected and sensitive to rifampicin. Patient was started on anti tuberculosis treatment under NTEP (national tuberculosis elimination programme) and full remission was achieved with 6 months of anti tuberculosis treatment. Although primary tuberculous conjunctivitis is a very rare condition, it should be considered in the differential diagnosis of treatment-resistant unilateral conjunctivitis. For definitive diagnosis, microbiological, histopathological and molecular examinations should be performed in conjunctival samples.
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