Open Access Open Access  Restricted Access Subscription Access

Refractive Errors among Collegiate Students


Affiliations
1 Department of Physiology, Dr. H.S.J. Institute of Dental Sciences and Hospital, Panjab University, Chandigarh, India
2 Department of Physiology, Govt. Medical College, Patiala, India
 

The observed epidemiology of refractive errors seen over a generation, fuelled by environmental changes namely stress and time spent in education, wherein the student population group requires considerable attention.This studies prevalence rates of various refractive errors occurring among college students of North India and to comparatively evaluate with respect to education stream, gender, religion and type of diet, 1200 (400 medical, 400 engineering and 400 arts) students aged 17-22 years from different colleges were interviewed regarding their diet, religion, and education stream, personal and family history of any medical or ocular disease. Visual acuity of all the students was assessed by Snellen and Jaegers charts and refractive errors were measured by cycloplegic refraction. The prevalence rates and 95% confidence intervals (CI) for myopia, hyperopia and astigmatism were calculated. Results were analyzed by chi2 test and P values of less than 0.05 were considered significant. It was found that the prevalence of refractive errors varies with gender and education stream, but not with religion and type of diet. Myopia was most prevalent refractive error in college students, 37.6% students have myopia, 3.58% astigmatism and 0.33 % hyperopia. Also statistically significantly higher prevalence of myopia was found in medical students as compared to other education streams (Myopia was significantly higher in medical (71.25%) as compared to engineering (28.25%)&arts students (13.5%)).No significant difference of myopia prevalence was found with respect to gender, religion or type of diet. Astigmatic prevalence was not significantly different in medical and engineering students but both medical and engineering students have significantly higher astigmatic prevalence as compared to arts students. Astigmatism was also significantly higher in females as compared to males. Highest myopia prevalence in medical students justifies that deteriorating vision is an occupational hazard for medical students.

Keywords

Refractive Errors, Medical, Engineering, Arts, Gender, Education Stream
User
Notifications

  • Goswami A ,Ahmed P, Shaha PL, Roy IS (1979) An epidemiological pattern of cases of refractive errors, 72(10), pp.227-228.
  • Dandona R, Dandona L. (2001) Refractive error blindness, Bull World Health Organ, 79:237–243.
  • Dandona L, Dandona R, Naduvilath TJ, McCarty CA, Srinivas M, Mandal P, et al (1999), Burden of moderate visual impairment in an urban population in Southern India. Ophthalmology 106:497–504.
  • Dandona L, Dandona R, Naduvilath TJ, McCarty CA, Nanda A, Srinivas M, et al (1998), Is current eye-care policy focus almost exclusively on cataract adequate to deal with blindness in India? Lancet, 351:1312–1316.
  • World Health Organization, WHO; Programme for the Prevention of Blindness and Deafness Global Initiative for the Elimination of Avoidable Blindness, Geneva, 1997:1–7.
  • Saw SM, Chua WH, Wu HM, , Yap E, Chia KS, Stone RA. et al (2000) Myopia: gene-environment interaction, Ann Acad Med Singapore, 29:290–297.
  • Saw SM (2003) A synopsis of the prevalence rates and environmental risk factors for myopia, Clin Exp Optom, 86(5):289–294.
  • Guggenheim JA, Hill C, Yam T-F (2003) Myopia, genetics and ambient lighting at night in a UK sample, Br J Ophthalmol. 87:580–582.
  • Dong XD, Ayala M, Lofgren S, Söderberg PG (2003) Ultraviolet radiation- induced cataract: age and maximum acceptable dosage, Invest Ophthalmol Vis Sci, 44:1150–1154.
  • Krishnaiah S, Srinivas M, Khanna RC, Rao GN (2009) Prevalence and risk factors for refractive errors in the South Indian adult population: The Andhra Pradesh Eye disease study, Clin Ophthalmol, 3:17-27.
  • Kinge B and Midelfart A: Refractive errors among engineering students in Norway(1994) Ophthalmic Epidemiol, Mar ; 1(1):5-13.
  • Midelfart A, Aamo B, Sjohaug KA, Dysthe BE (1992) Myopia among medical students in Norway, Acta Ophthalmol, 70: pp.317-22.
  • Gupta M, Gupta Y (2002) A survey on refractive error and strabismus among children in a school at Aligarh, Indian J Public Health Jul-Sep ;44(3): 90-3.
  • Dandona R, Dandona L, Srinivas M, Giridhar P, McCarty CA, Rao GN (2002) Population-based assessment of refractive error in India: the Andhra Pradesh EyeDisease Study, Clin Experiment Ophthalmol, 30(2)84–93.
  • Mukherji R, Seal SC (1979) An Epidemiological study of refractive errors among college students in Calcutta, J Indian Med Assoc, 73(9-10):159-64
  • Woo W W, Lim K A, Yang H, Lim X Y, Liew F, Lee Y S, Saw S M (2004) Refractive errors in medical students in Singapore, Singapore, Med.J, 45(10) : 470.
  • Lin LKL, Shif YF, Lee YC, Hung PT, Hou PK(1996) Changes in ocular refraction and its components among medical students, A 5-year longitudinal study, Optom.Vis.Sci, 73: 495-8.
  • Fledelius H (2000) Myopia profile in Copenhagen medical students 1996-98, Refractive stability over a century is suggested, Acta Ophthalmol Scand, 78:501-5.
  • Au Eong KG, Tay TH, Lim MK(1993) Race, culture and myopia in 110,236 young Singaporean males, Singapore.Med.J, 34:29-32.
  • Saw SM, Katz J, Schein OD, Chew SJ, Chan TK(1996) Epidemiology of myopia, Epidemiol Rev, 18:175-87.
  • Rosner M, Belkin M (1987) Intelligence, education and myopia in males, Arch Ophthalmol, 105:1508-11.
  • Teasdale TW, Fuchs J, Goldschmidmt E(1988) Degree of myopia in relation to intelligence and educational level, Lancet, 2:1351-4.
  • Chow YC, Dhillon B, Chew PTK, Chew SJ (1990) Refractive errors in Singapore medical students, Singapore Med J, 31:472-3.
  • Shulkin DJ, Bari MM (1986) Deteriorating vision: an occupational risk for the medical student, Arch Ophthalmol, 104:1274.
  • Richler A, Bear J(1980) Refraction, nearwork and education Acta Ophthalmol, 58:468-78.
  • Saw SM, Nieto FJ, Katz J, Chew SJ (1999) Estimating the magnitude of close-up work in school-age children: a comparison of questionnaire and dairy instruments, Ophthalmic Epidemiol, 6:291-301.
  • Kinge B, Midelfart A, Jacobsen G, Rystad J (2000) The influence of near-work on development of myopia among university students, A three-year longitudinal study among engineering students in Norway, Acta Ophthalmol Scand, 78:26-9.
  • Saw SM, Wu HM, Seet B, Wong TY, Yap E, Chia KS, et al(2001) Academic achievement, close up work parameters, and myopia in Singapore, Br. J. Ophthalmol, 85:855-60.
  • Yap M, Wu M, Liu ZM, Lee FL, Wang SH (1993) Role of heredity in the genesis of myopia, Ophthalmol Physiol Opt, 13:316-9.
  • Chew SJ, Ritch R (1994) Parental history and myopia – taking the long view, JAMA, 272:1255.
  • Seet B, Wong TY, Tan DTH, Saw SM, Balakrishnan V, Lee LKH, et al (2001) Myopia in Singapore: taking a public health approach, Br J Ophthalmol, 85:521-6.
  • Kinge B, Midelfart A, Jacobsen G (1998) Refractive errors among young adults and university students in Norway, Acta Ophthalmol Scand,76:692-5.
  • Saw SM (2003) A synopsis of the prevalence rates and environmental risk factors for myopia, Clinical & Experimental Optometry, 86:289-294.
  • Simensen B, Thorud LO (1994) Adult-onset myopia and occupation: Acta Ophthalmologica Scandinavica, 72:469-71.
  • Kartz J, Tielsch JM and Sommer A(1997) Prevalence and risk factors for refractive errors in an adult inner city population, Invest Ophthlmol Vis Sci. Feb;38(2):334-40.
  • Czepita D, Gosławski W, Mojsa A (2004) Astigmatism among students ranging from 6 to 18 years of age, Klin Oczna,106 (1-2):61-3.
  • Mandalos AT, Peios DK, Mavracanas A, Golias VA, Megalou KG, Delidou KA, et al (2002) Prevalence of astigmatism among students in northern Greece, Eur J Ophthalmol, 12:1-4.
  • Grosvenor T: Etiology of astigmatism (1978) Am J Optom Physiol Opt, Mar;55(3):214-8. 87

Abstract Views: 598

PDF Views: 479




  • Refractive Errors among Collegiate Students

Abstract Views: 598  |  PDF Views: 479

Authors

Komal Marwaha
Department of Physiology, Dr. H.S.J. Institute of Dental Sciences and Hospital, Panjab University, Chandigarh, India
K. D. Singh
Department of Physiology, Govt. Medical College, Patiala, India
Baljeet Kaur
Department of Physiology, Govt. Medical College, Patiala, India

Abstract


The observed epidemiology of refractive errors seen over a generation, fuelled by environmental changes namely stress and time spent in education, wherein the student population group requires considerable attention.This studies prevalence rates of various refractive errors occurring among college students of North India and to comparatively evaluate with respect to education stream, gender, religion and type of diet, 1200 (400 medical, 400 engineering and 400 arts) students aged 17-22 years from different colleges were interviewed regarding their diet, religion, and education stream, personal and family history of any medical or ocular disease. Visual acuity of all the students was assessed by Snellen and Jaegers charts and refractive errors were measured by cycloplegic refraction. The prevalence rates and 95% confidence intervals (CI) for myopia, hyperopia and astigmatism were calculated. Results were analyzed by chi2 test and P values of less than 0.05 were considered significant. It was found that the prevalence of refractive errors varies with gender and education stream, but not with religion and type of diet. Myopia was most prevalent refractive error in college students, 37.6% students have myopia, 3.58% astigmatism and 0.33 % hyperopia. Also statistically significantly higher prevalence of myopia was found in medical students as compared to other education streams (Myopia was significantly higher in medical (71.25%) as compared to engineering (28.25%)&arts students (13.5%)).No significant difference of myopia prevalence was found with respect to gender, religion or type of diet. Astigmatic prevalence was not significantly different in medical and engineering students but both medical and engineering students have significantly higher astigmatic prevalence as compared to arts students. Astigmatism was also significantly higher in females as compared to males. Highest myopia prevalence in medical students justifies that deteriorating vision is an occupational hazard for medical students.

Keywords


Refractive Errors, Medical, Engineering, Arts, Gender, Education Stream

References