نوع مقاله : مقاله پژوهشی
نویسندگان
1 کارشناس ارشد بینایی سنجی، کلینیک چشم پزشکی نوردیدگان، کرج، ایران
2 کمیته پژوهشی دانشجویان. کارشناس ارشد بینایی سنجی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
3 استادیار گروه اپتومتری، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
4 کارشناس ارشد آمار زیستی، گروه علوم پایه، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
5 چشم پزشک، استاد دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Aim: Ocular biometry parameters are important factors which have valuable roles in diagnostic and therapeutic procedures in ophthalmology. The aim of the present study was to determine the relationships between height, weight, and Body Mass Index (BMI) and Ocular biometric parameters.
Materials and Methods: A total of 123 participants underwent ocular examination in Noordidegan eye clinic. Inclusion criteria were spherical refractive error ranging between plano to ±2.00 diopter, astigmatism between plano to -2.00 diopter, and best corrected visual acuity of 20/20. Also, exclusion criteria were diabetes, blood hypertension, thyroid problems, keratoconus, corneal scars, pterygium, cataracts, glaucoma, and any ocular surgery history. Ocular biometric parameters were analyzed using Lenstar, and height and weight were measured according to the standard protocol.
Results: Ocular biometric data were collected from participants with an average age of 36.10±8.41 including 61 women (49.6%) and 62 men (50.4%). The average value of height, weight, and BMI were 170.40±9.81 cm, 79.84±18.91 kg, and 27.54±6.18 kg/m2, respectively. Also, the averages of eye axial length, central corneal thickness, anterior chamber depth, crystalline lens thickness, and corneal power were 23.59±0.82 mm, 538.60±36.84 µm, 3.57±0.32 mm, 3.79±0.35 mm, and 43.67±1.42 D, respectively. It was observed that height correlated positively with axial length and anterior chamber depth (p<0.001, p=0.003 respectively). However, it was negatively associated with corneal power (p<0.001). Also, BMI positively correlated with crystalline lens thickness (p<0.05). In addition, weight positively related with axial length (p=0.005) and anterior chamber depth (p<0.05)
Conclusion: Our results indicated that eye axial length and anterior chamber depth increase with increase in height and weight and corneal power decrease with increase in height. Also, a direct association was observed between BMI and crystalline lens thickness.
کلیدواژهها [English]
10. Kristinsson J, Carlson A, Kim T. Keratoconus and obesity-A connection? Investigative Ophthalmology & Visual Science. 2003;44(13):812-.##
11. Le A, Mukesh BN, McCarty CA, Taylor HR. Risk factors associated with the incidence of open-angle glaucoma: the visual impairment project. Investigative ophthalmology & visual science. 2003;44(9):3783-9. ##
12. Wang YX, Xu L, Zhang XH, You QS, Zhao L, Jonas JB. Five-year change in intraocular pressure associated with changes in arterial blood pressure and body mass index. The Beijing Eye Study. PloS one. 2013;8(10). ##
13. Hashemi H, Khabazkhoob M, Miraftab M, Emamian MH, Shariati M, Abdolahinia T, et al. The distribution of axial length, anterior chamber depth, lens thickness, and vitreous chamber depth in an adult population of Shahroud, Iran. BMC ophthalmology. 2012;12(1):50. ##
14. Kołodziejczyk W, Gałecki T, Łazicka-Gałecka M, Szaflik J. Comparison of the biometric measurements obtained using noncontact optical biometers LenStar LS 900 and IOL Master V. 5. Klinika oczna. 2010;113(1-3):47-51. ##
15. Yin G, Wang YX, Zheng ZY, Yang H, Xu L, Jonas JB. Ocular axial length and its associations in Chinese: the Beijing Eye Study. PloS one. 2012;7(8):e43172. ##
16. Shufelt C, Fraser-Bell S, Ying-Lai M, Torres M, Varma R. Refractive error, ocular biometry, and lens opalescence in an adult population: the Los Angeles Latino Eye Study. Investigative ophthalmology & visual science. 2005;46(12):4450-60. ##
17. Nangia V, Jonas JB, Sinha A, Matin A, Kulkarni M, Panda-Jonas S. Ocular axial length and its associations in an adult population of central rural India: the Central India Eye and Medical Study. Ophthalmology. 2010;117(7):1360-6. ##
18. Foster P, Broadway D, Hayat S, Luben R, Dalzell N, Bingham S, et al. Refractive error, axial length and anterior chamber depth of the eye in British adults: the EPIC-Norfolk Eye Study. British Journal of Ophthalmology. 2010;94(7):827-30. ##
19. Eysteinsson T, Jonasson F, Arnarsson Á, Sasaki H, Sasaki K. Relationships between ocular dimensions and adult stature among participants in the Reykjavik Eye Study. Acta Ophthalmologica Scandinavica. 2005;83(6):734-8. ##
20. Ojaimi E, Morgan IG, Robaei D, Rose KA, Smith W, Rochtchina E, et al. Effect of stature and other anthropometric parameters on eye size and refraction in a population-based study of Australian children. Investigative ophthalmology & visual science. 2005;46(12):4424-9. ##
21. Aung T, Nolan WP, Machin D, Seah SK, Baasanhu J, Khaw PT, et al. Anterior chamber depth and the risk of primary angle closure in 2 East Asian populations. Archives of Ophthalmology. 2005;123(4):527-32. ##
22. Lowe RF, Lim ASM, Geh M. Primary angle closure glaucoma: PG Pub.; 1989. ##
23. Gunes A, Uzun F, Karaca EE, Kalaycı M. Evaluation of anterior segment parameters in obesity. Korean Journal of Ophthalmology. 2015;29(4):220-5. ##
24. Su DH, Wong TY, Foster PJ, Tay W-T, Saw S-M, Aung T. Central corneal thickness and its associations with ocular and systemic factors: the Singapore Malay Eye Study. American journal of ophthalmology. 2009;147(4):709-16. ##