Nitin Batra

Ophthalmic manifestations of acute and chronic leukemias presenting to a tertiary care center in India

Context: Screening for ocular manifestations of leukemia, although not a routine practice, is important as they may antedate systemic disease or form an isolated focus of its relapse. Aims: This study evaluates the spectrum of ocular manifestations in acute and chronic leukemias presenting to a tertiary care center in India. Settings and Design: Subjects of leukemia presenting to a tertiary care center in India. Subjects and Methods: A prospective, cross-sectional study looking at the spectrum of ocular manifestations in all inpatients of acute or chronic leukemia. Statistical Analysis Used: The collected data were analyzed using the Statistical Package for Social Sciences for Windows software, version 16 (SPSS Inc., Chicago, Illinois, USA). Results: The study subjects (n = 96) comprised 61 males and 35 females whose age ranged from 18 months to 91 years (mean = 39.73, ±22.1). There were 79 adults and 17 children, 53 new and 43 existing patients, 68 acute and 28 chronic, 61 myeloid and 35 lymphoid patients. Ocular lesions were found in 42 patients (43.8%). The ocular manifestations of leukemia were significantly (P = 0.01467) more frequent in acute 35/68 (51.9%) than chronic 7/28 (25%) leukemias. Primary or direct leukemic infiltration was seen in 8 (8.3%) subjects while secondary or indirect involvement due to anemia, thrombocytopenia, hyperviscosity, total body irradiation, and immunosuppression were seen in 42 (43.8%) subjects. Ocular changes were present in 37/79 (46.8%) adults and 5/17 (29.4%) children (P = 0.09460). Twenty-eight males (28/61) 45.9% and 14/35 (40%) females had ocular manifestations (P = 0.2874). The ocular manifestations were significantly (P = 0.01158) more frequent in myeloid leukemias 32/61 (52.9%) than lymphoid leukemias 10/35 (28.6%). Conclusions: Leukemic ophthalmic lesions were found in 42/96 (43.8%) patients. Ocular involvement is more often seen in adults, acute and myeloid leukemias. All the primary leukemic manifestations were seen in males. A periodic ophthalmic examination should be mandatory for all leukemic patients, as ocular changes are often picked up in asymptomatic patients.

Vitamin A deficiency: An eye sore

Vitamin A deficiency is a major cause of childhood mortality and morbidity in India and other developing countries. The ocular manifestations of vitamin A are collectively called xerophthalmia and range from conjunctival xerosis to severe blinding complications such as keratomalacia. Vitamin A deficiency exists as a major public health nutrition problem among preschool-aged children, especially in the South East Asian region, as well as among the pregnant and lactating women. Deficiency can be diagnosed by the ocular manifestations such as Bitots spots, serum retinol levels, and conjunctival impression cytology (CIC). Improving vitamin A status in the diet or by periodic administration of vitamin A to children can reduce both mortality and blindness. This review is an attempt to highlight the ocular manifestations of vitamin A deficiency, its prevalence, treatment, and preventive strategies.