E-ISSN 2231-3206 | ISSN 2320-4672
 

Original Research

Online Publishing Date:
05 / 07 / 2016

 


Effect of genetic predisposition on the age of onset and progression of myopia among medical students

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty.


Abstract
Background: Nearsightedness, or myopia, one of the refractive errors of eye and it has become more prevalent in recent years. Heredity and visual stress are the two main factors responsible for the development of myopia. Medical students are more vulnerable to early onset of myopia.

Aims and Objective: To analyze the commencement and progression of myopia with or without genetic predisposed medical students.

Material and Methods: This study included 131 myopic students with the age range of 17–25 years. The subjects were grouped into genetically predisposed (with either of the parent or both parents myopic) and genetically non-predisposed (both parents non-myopic). The data regarding the age of onset, family history, and the refractory power at the onset and present were collected by validated questionnaire.

Result: In genetically predisposed group, the early age of onset (11.03±3.40 versus 12.98±3.78), refractive power (right eye: 1.01±0.96 versus 0.91±0.57; left eye: 0.94±0.71 versus 0.80±0.62) was significantly increased (P < 0.05) when compared to the non-genetically predisposed group. Progression of refractive power showed a nonsignificant increase in the genetically predisposed group.

Conclusion: Early age of onset and faster progression of myopia in genetically predisposed might be due to the combined influence of genetic predisposition and environmental factors.

Key words: Myopia, medical students, genetic predisposed, onset of myopia, progression of myopia


 
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How to Cite this Article
Pubmed Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty. Effect of genetic predisposition on the age of onset and progression of myopia among medical students. Natl J Physiol Pharm Pharmacol. 2016; 6(4): 333-335. doi:10.5455/njppp.2016.6.14032016133


Web Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty. Effect of genetic predisposition on the age of onset and progression of myopia among medical students. https://www.njppp.com/?mno=223612 [Access: March 14, 2024]. doi:10.5455/njppp.2016.6.14032016133


AMA (American Medical Association) Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty. Effect of genetic predisposition on the age of onset and progression of myopia among medical students. Natl J Physiol Pharm Pharmacol. 2016; 6(4): 333-335. doi:10.5455/njppp.2016.6.14032016133



Vancouver/ICMJE Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty. Effect of genetic predisposition on the age of onset and progression of myopia among medical students. Natl J Physiol Pharm Pharmacol. (2016), [cited March 14, 2024]; 6(4): 333-335. doi:10.5455/njppp.2016.6.14032016133



Harvard Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty (2016) Effect of genetic predisposition on the age of onset and progression of myopia among medical students. Natl J Physiol Pharm Pharmacol, 6 (4), 333-335. doi:10.5455/njppp.2016.6.14032016133



Turabian Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty. 2016. Effect of genetic predisposition on the age of onset and progression of myopia among medical students. National Journal of Physiology, Pharmacy and Pharmacology, 6 (4), 333-335. doi:10.5455/njppp.2016.6.14032016133



Chicago Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty. "Effect of genetic predisposition on the age of onset and progression of myopia among medical students." National Journal of Physiology, Pharmacy and Pharmacology 6 (2016), 333-335. doi:10.5455/njppp.2016.6.14032016133



MLA (The Modern Language Association) Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty. "Effect of genetic predisposition on the age of onset and progression of myopia among medical students." National Journal of Physiology, Pharmacy and Pharmacology 6.4 (2016), 333-335. Print. doi:10.5455/njppp.2016.6.14032016133



APA (American Psychological Association) Style

Anshul Chathrath, Bhagyalakshmi Kodavanji, Nayanatara A K, Anupama Noojibail, Rekha D Kini, Sneha B Shetty (2016) Effect of genetic predisposition on the age of onset and progression of myopia among medical students. National Journal of Physiology, Pharmacy and Pharmacology, 6 (4), 333-335. doi:10.5455/njppp.2016.6.14032016133