To evaluate the acute and chronic effects of smokeless tobacco (ST) on the anterior segment parameters using optical biometry. Observational, comparative, cross-sectional study Place and Duration of Study: Department of Ophthalmology, Kahramanmaras Sutcu Imam University.~The study included 53 right eyes of 53 subjects (study group), who used ST and 54 right eyes of 54 healthy subjects without ST (control group). Following a full ophthalmological examination, baseline measurements were taken with optical biometry and these measurements were repeated at 5, 30 and 60 mins after using ST.
Observational, comparative, cross-sectional study