The short-term effects of exercise on intraocular pressure, choroidal thickness and axial length

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Abstract

Purpose: To explore ocular changes in healthy people after exercise. Methods: Twenty five volunteers underwent exercise for 15 minutes on a treadmill. Measurements of choroidal thickness, intraocular pressure (IOP), ocular biometry, and blood pressure were taken before and after exercise. Enhanced Depth Imaging optical coherence tomography (EDI-OCT) was used to measure choroidal thickness at the fovea. Intraocular pressure (IOP) was measured by Goldmann applanation tonometry. Ocular biometric measures were collected using A scan ultrasound. Blood pressure was measured concurrently with the acquisition of the scans. Results: Twenty five volunteers (25 eyes) with a mean age of 25.44±3.25 years were measured. There was a significant increase in systolic and diastolic pressure after exercise (P<0.05). The IOP showed a significant decrease after exercise (P<0.05). However there was no significant difference in the mean choroidal thickness, ocular axial length, anterior chamber depth, lens thickness, or vitreous length before and after exercise measurements (P>0.05). Conclusion: There was a significant decrease in IOP from exercise without a change in choroidal thickness and ocular biometric measures. IOP and choroidal thickness were not correlated, suggesting that the IOP decrease from exercise is not due to changes in choridal thickness. © 2014 Hong et al.

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Hong, J., Zhang, H., Kuo, D. S., Wang, H., Huo, Y., Yang, D., & Wang, N. (2014). The short-term effects of exercise on intraocular pressure, choroidal thickness and axial length. PLoS ONE, 9(8). https://doi.org/10.1371/journal.pone.0104294

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