A Prospective Observational Study on the Clinical Characteristics of Pregnant Women Post COVID-19 Vaccines
Authors/Creators
- 1. Department of Pharmacy Practice, Vels Institute of Science, Technology and Advanced Studies (VISTAS), Pallavaram, Chennai
Description
Background: The use of mydriatic and cycloplegic eye drops is a common practice in ophthalmology for various diagnostic and therapeutic procedures like for estimation of refractive error and for thorough fundus examination. The combination of Tropicamide and Phenylephrine has been a subject of debate among ophthalmologists regarding its efficacy and side effects. Aims and Objectives: The aim of this study was to evaluate the efficacy and safety of 1% Tropicamide alone versus a combination of 0.8% Tropicamide and 5% Phenylephrine for mydriasis and cycloplegia. The objectives were to compare the rate of mydriasis and maximal mydriasis after instilling a single drop of each solution and to measure the degree of cycloplegia and amount of residual accommodation at 25 minutes after instillation of the drops. Methods: This was a hospital-based, analytic cross-sectional study conducted on 100 patients between 15 and 35 years of age presenting to the Department of Ophthalmology, Government Medical College and Associated Group of Hospitals, Kota for refraction or fundus examination. Patients were randomly assigned to either the Tropicamide group or the Tropicamide-Phenylephrine group. The study measured the rate of mydriasis, maximal mydriasis after eye drop instillation. Study also measured the degree of cycloplegia and amount of residual accommodation at 25 minutes after instillation of the drop. Results: The combination of Tropicamide and Phenylephrine resulted in a higher rate of mydriasis and maximal mydriasis than Tropicamide alone. Tropicamide alone uncovered significantly higher mean latent error of refraction and had higher cycloplegic effect as compared to combination group. The study also found that increasing age lead to increased cycloplegia and decreased residual accommodation in both groups. It was also found that both groups had a similar safety profile, with no significant adverse effects observed except significant increase in pulse rate after instillation of combination eye drop. Conclusion: The combination of Tropicamide and Phenylephrine is more effective than Tropicamide alone for inducing mydriasis with a similar safety profile except significant change in pulse rate. While Tropicamide alone had better cycloplegic effect.
Abstract (English)
Background: The use of mydriatic and cycloplegic eye drops is a common practice in ophthalmology for various diagnostic and therapeutic procedures like for estimation of refractive error and for thorough fundus examination. The combination of Tropicamide and Phenylephrine has been a subject of debate among ophthalmologists regarding its efficacy and side effects. Aims and Objectives: The aim of this study was to evaluate the efficacy and safety of 1% Tropicamide alone versus a combination of 0.8% Tropicamide and 5% Phenylephrine for mydriasis and cycloplegia. The objectives were to compare the rate of mydriasis and maximal mydriasis after instilling a single drop of each solution and to measure the degree of cycloplegia and amount of residual accommodation at 25 minutes after instillation of the drops. Methods: This was a hospital-based, analytic cross-sectional study conducted on 100 patients between 15 and 35 years of age presenting to the Department of Ophthalmology, Government Medical College and Associated Group of Hospitals, Kota for refraction or fundus examination. Patients were randomly assigned to either the Tropicamide group or the Tropicamide-Phenylephrine group. The study measured the rate of mydriasis, maximal mydriasis after eye drop instillation. Study also measured the degree of cycloplegia and amount of residual accommodation at 25 minutes after instillation of the drop. Results: The combination of Tropicamide and Phenylephrine resulted in a higher rate of mydriasis and maximal mydriasis than Tropicamide alone. Tropicamide alone uncovered significantly higher mean latent error of refraction and had higher cycloplegic effect as compared to combination group. The study also found that increasing age lead to increased cycloplegia and decreased residual accommodation in both groups. It was also found that both groups had a similar safety profile, with no significant adverse effects observed except significant increase in pulse rate after instillation of combination eye drop. Conclusion: The combination of Tropicamide and Phenylephrine is more effective than Tropicamide alone for inducing mydriasis with a similar safety profile except significant change in pulse rate. While Tropicamide alone had better cycloplegic effect.
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IJTPR,Vol13,Issue4,Article11.pdf
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Additional details
Dates
- Accepted
-
2023-03-30
Software
References
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