* Guidelines of scientific societies and associations (including the Polish Ophthalmological Society) do not constitute binding laws and do not determine the only correct procedures; they are only an opinion of a group of experts from a given field. The opinion reflects the current state of knowledge based on available scientific research results. The guidelines do not exempt healthcare workers from personal liability with regard to making the correct decisions for individual patients. Personal responsibility for the used therapeutic methods rests with all individuals who practise medicine. It should be based on thorough knowledge and practical skills, while observing necessary safety measures with regard to oneself and the patient. Readers of this paper are obliged to make themselves familiar with current information on the presented treatments and pharmacotherapies with special attention paid to manufacturers' information on doses, time, and administration as well as side effects of the used drugs. The publishers and editors of the paper shall not be responsible for any damages that could in any way be connected to the contents of this paper.

Aim: To analyse histological evaluation findings in children with conjunctival pigmented lesions. Material and methods: A retrospective medical record analysis of patients with conjunctival pigmented lesions treated between 2009 and 2018 was carried out. The patients (n=145; 87 males, 58 females) were aged 1 to 18 years (mean age of 10 years) underwent surgical treatment at the Department of Ophthalmology, at the Children's Memorial Health Institute. Results: Out of 146 analysed conjunctival lesions, 132 (90.41 %) were conjunctival nevi. Histological evaluation findings were melanocytic nevus (61 eyes, 41.78%), compound nevus (47 eyes; 32.19%), junctional nevus (23 eyes;15.75%) and subepithelial nevus (1 eye; 0.68%). The nevi were located in the bulbar conjunctiva (119 lesions, 81.51%) and lacrimal caruncle (27 lesions, 18.49%). The lesions found in the bulbar conjunctiva were usually located temporally (77 eyes, 64.71%) and nasally (42 eyes, 35.29%). In 14 cases (9.59%), the diagnosis of conjunctival pigmented lesion was ruled out with histology evaluation demonstrating inflammation (3 cases), inflammation with fibrosis (2 cases), melanosis (2 cases) as well as lentigo, subconjunctival haemorrhage, lymphangioma, haemangioma, severe conjunctival oedema with dilated lymphatic vessels, elevated melanocyte count and fibrotic connective tissue (one case of each). Conclusions: Conjunctival lesions in children are mostly benign with conjunctival nevus being the most common finding of histological evaluation.

Aim of the study: To present a case of lateral rectus myositis in a 19-month-old male patient. Case report: The 19-month-old male patient was admitted to the clinic because of exophthalmos of the right eye for diagnosis and further treatment. Based on the clinical manifestation, and after other potential causes had been ruled out, the patient was diagnosed with ocular myositis. Treatment with steroids and antibiotics resulted in resolution of symptoms. Conclusions: Ocular myositis is an isolated inflammation of the extraocular muscles, manifested by swollen eyelids, exophthalmos, pain upon eye movement and diplopia. Ocular myositis is an extremely rare disease which occurs in pediatric populations. To the best of our knowledge, this is the first documented case of myositis in a very young child.

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Aim of the study: Evaluation of efficacy of indocyanine green enhanced transpupillary thermotherapy (ICG-TTT) as a single treatment for recurrence of retinoblastoma. Material and methods: Single-center, retrospective study of 18 procedures in 11 eyes of 11 retinoblastoma patients (12 tumors), with a mean follow-up of 31.94 months (range 1-44 months). Nine tumors had one procedure of ICG-TTT and 3 tumors had more than one procedure due to relapses. The technique involved applying thermotherapy (TTT) via an indirect ophthalmoscope 30 seconds after intravenous indocyanine administration at a dose of 0.6 mg/kg. Results:During follow-up, tumor recurrence after ICG-TTT developed after 11 procedures. Taking into account cases where ICG-TTT was the only treatment for retinoblastoma relapse, the success rate was 26.7% (4 effective procedures out of 15). Overall, tumor control and globe salvage was achieved in all eyes with ICG-TTT alone or with other forms of therapy, e.g. systemic chemotherapy, ophthalmic artery chemosurgery, brachytherapy. Conclusions: ICG-TTT as the only procedure for relapses of retinoblastoma has a moderate success rate. No ocular or systemic complications were noted.