Prevalence Refractive Errors among Medical Students of Qassim University, Saudi Arabia: Cross-Sectional Descriptive Study

Sultan H. Al-Rashidi; Adel A. Albahouth; Waleed A. Althwini; Abdullah A. Alsohibani; Abdulmejeed A. Alnughaymishi; Abdulamlaik A. Alsaeed; Fahad H. Al-Rashidi; Salem Almatrafi

doi:10.3889/oamjms.2018.197

Authors

Sultan H. Al-Rashidi Department of Ophthalmology, College of Medicine, Qassim University, Buraidah
Adel A. Albahouth Department of Ophthalmology, College of Medicine, Qassim University, Buraidah
Waleed A. Althwini Department of Ophthalmology, College of Medicine, Qassim University, Buraidah
Abdullah A. Alsohibani Department of Ophthalmology, College of Medicine, Qassim University, Buraidah
Abdulmejeed A. Alnughaymishi Department of Ophthalmology, College of Medicine, Qassim University, Buraidah
Abdulamlaik A. Alsaeed Department of Ophthalmology, College of Medicine, Qassim University, Buraidah
Fahad H. Al-Rashidi Department of Ophthalmology, College of Medicine, Qassim University, Buraidah
Salem Almatrafi Department of Ophthalmology, College of Medicine, Qassim University, Buraidah

DOI:

https://doi.org/10.3889/oamjms.2018.197

Keywords:

Errors of refraction, Myopia, Hyperopia, young adults

Abstract

OBJECTIVE: To study the prevalence of various errors of refraction among the medical students studying at the college of medicine, Qassim University, Saudi Arabia.

METHODS: This is a cross-sectional descriptive study conducted at Qassim University clinics over a period of two months. The study population comprised 162 male and female students from different academic years. The students were selected randomly so that around 35-40 students were taken from each academic class. The selected study population was explained the objectives of the study and a written consent form that stated the purpose, methods, risks, benefits, and the assurance of the confidentiality of the data was obtained from each student. After giving the consent, each subject was examined by auto refractometer. The examination was carried out by an optometrist without using cycloplegia. Both right and left eyes were thoroughly examined by auto refractometer and on the average three readings of the refraction measurements were taken. The readings were recorded on a data sheet of every individual, and the Statistical analysis was performed using Statistical Package for Social Sciences (SPSS).

RESULTS: One hundred and sixty-two (162) students with a mean age of 22.44 years, Std 1.661 and a range of 8 (19-27) were included in the study. Of the total number, 111 (68.51%) were males and remaining 51 (31.48%) were females. Of the total sample, only 1 (0.617%) student had diabetes mellitus, and 6 (3.70%) students gave a history of previous ocular surgery. Myopia was found to be the commonest error of refraction 53.7% with hyperopia next to it.

CONCLUSION: Myopia is found to be a common error of refraction in young adults. A regular checkup is essential to timely correct the error and to prevent deterioration of the vision.

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References

Khanna RC, Marmamula S, Rao GN. International Vision Care: Issues and Approaches. Annu Rev Vis Sci. 2017; 3:53-68. https://doi.org/10.1146/annurev-vision-102016-061407 PMid:28937949

Gilbert C, Foster A. Childhood blindness in the context of VISION 2020--the right to sight. Bull World Health Organ. 2001; 79(3):227-32. PMid:11285667 PMCid:PMC2566382

Irving EL, Machan CM, Lam S, Hrynchak PK, Lillakas L. Refractive error magnitude and variability: Relation to age. J Optom. 2018; 2018.

Alam H, Siddiqui MI, Jafri SI, Khan AS, Ahmed SI, Jafar M. Prevalence of refractive error in school children of Karachi. J Pak Med Assoc. 2008; 58:322-5. PMid:18988392

Gilbert C. Changing challenges in the control of blindness in children. Eye. 2007; 21:1338-43. https://doi.org/10.1038/sj.eye.6702841 PMid:17914437

Pascolini D, Mariotti SP. Global estimates of visual impairment: 2010. Br J Ophthalmol.2012 ; 96(5):614-8. https://doi.org/10.1136/bjophthalmol-2011-300539 PMid:22133988

Gopalakrishnan S, Prakash MVS, Jha K, Ranjit . A Study of Refractive Errors among Medical students in AIMST University, Malaysia 2011. Indian Medical Journal. 105. 365-367.

Bourne RR, Stevens GA, White RA, Smith JL, Flaxman SR, Price H, Jonas JB, Keeffe J et al. Causes of vision loss worldwide, 1990-2010: a systematic analysis. Lancet Glob Health. 2013; 1(6):e339-49. https://doi.org/10.1016/S2214-109X(13)70113-X

Ghaderi S, Hashemi H, Jafarzadehpur E, Yekta A, Ostadimoghaddam H, Mirzajani A, Khabazkhoob M. The prevalence and causes of visual impairment in seven-year-old children. Clin Exp Optom. 2017; 2017.

Paudel P, Ramson P, Naduvilath T, Wilson D, Phuong HT, Ho SM, Giap NV. Prevalence of vision impairment and refractive error in school children in Ba Ria - Vung Tau province, Vietnam. Clin Exp Ophthalmol. 2014; 42(3):217-26. https://doi.org/10.1111/ceo.12273

PMid:24299145 PMCid:PMC4291105

Goh PP, Abqariyah Y, Pokharel GP, Ellwein LB. Refractive error and visual impairment in school-age children in Gombak District, Malaysia. Ophthalmology. 2005; 112(4):678-85. https://doi.org/10.1016/j.ophtha.2004.10.048 PMid:15808262

Dandona R, Dandona L, Srinivas M, Sahare P, Narsaiah S, Mu-oz SR, Pokharel GP, Ellwein LB. Refractive error in children in a rural population in India. Invest Ophthalmol Vis Sci. 2002; 43(3):615-22. PMid:11867575

Oyo-Szerenyi KD, Wienecke L, Businger U, Schipper I. Autorefraction/autokeratometry and subjective refraction in untreated and photorefractive keratectomy-treated eyes. Arch Ophthalmol. 1997; 115:157â€“64. https://doi.org/10.1001/archopht.1997.01100150159002 PMid:9046248

Xiong S, Lv M, Zou H, Zhu J, Lu L, Zhang B, Deng J, Yao C, He X, Xu X. Comparison of refractive measures of three autorefractors in children and adolescents. Optom Vis Sci. 2017; 94(9):894-902. https://doi.org/10.1097/OPX.0000000000001113 PMid:28816868 PMCid:PMC5571878

Lou L, Yao C, Jin Y, Perez V, Ye J. Global Patterns in Health Burden of Uncorrected Refractive Error. Invest Ophthalmol Vis Sci. 2016; 57(14):6271-6277. https://doi.org/10.1167/iovs.16-20242 PMid:27893092

Vitale S, Sperduto RD, Ferris FL. Increased prevalence of myopia in the United States between 1971-1972 and 1999-2004. Arch Ophthalmol. 2009; 127(12):1632-9. https://doi.org/10.1001/archophthalmol.2009.303 PMid:20008719

Dandona R, Dandona L, Naduvilath TJ, Srinivas M, McCarty CA, Rao GN. Refractive errors in an urban population in Southern India: The Andhra Pradesh Eye Disease Study. Invest Ophthalmol Vis Sci. 1999; 40:2810-8. PMid:10549640

Saw SM, Chan YH, Wong WL, Shankar A, Sandar M, Aung T, Tan DT, Mitchell P, Wong TY. Prevalence and risk factors for refractive errors in the Singapore Malay Eye Survey. Ophthalmology. 2008; 115(10):1713-9. https://doi.org/10.1016/j.ophtha.2008.03.016 PMid:18486221

Pan CW, Dirani M, Cheng CY, Wong TY, Saw SM. The age-specific prevalence of myopia in Asia: a meta-analysis. Optom Vis Sci. 2015; 92(3):258-66. https://doi.org/10.1097/OPX.0000000000000516 PMid:25611765

Chow YC, Dhillon B, Chew PTK, Chew SJ. Refractive errors in Singapore medical students. Singapore Med J. 1990; 31:472-3. PMid:2259947

Midelfart A, Aamo B, Sjohaug KA, Dysthe BE. Myopia among medical students in Norway. Acta Ophthalmol. 1992; 70:317-22. https://doi.org/10.1111/j.1755-3768.1992.tb08571.x

French AN, Morgan IG, Mitchell P, Rose KA. Risk factors for incident myopia in Australian schoolchildren: the Sydney adolescent vascular and eye study. Ophthalmology. 2013; 120:2100-8. https://doi.org/10.1016/j.ophtha.2013.02.035 PMid:23672971

Erdinest N, Morad Y. Treatments for slowing the progression of myopia. Harefuah. 2017; 156(11):720-724. PMid:29198091

Walline JJ, Lindsley K, Vedula SS, Cotter SA, Mutti DO, Twelker JD. Interventions to slow progression of myopia in children. Cochrane Database Syst Rev. 2011; 7:(12):CD004916. https://doi.org/10.1002/14651858.CD004916.pub3

Walline JJ. Myopia Control: A Review. Eye Contact Lens. 2016; 42(1):3-8. https://doi.org/10.1097/ICL.0000000000000207 PMid:26513719

Saw SM, Shih-Yen EC, Koh A, Tan D. Interventions to retard myopia progression in children: an evidence-based update. Ophthalmology. 2002; 109(3):415-21. https://doi.org/10.1016/S0161-6420(01)00972-1

Hasebe S1, Nonaka F, Nakatsuka C, Ohtsuki H. Myopia control trial with progressive addition lenses in Japanese schoolchildren: baseline measures of refraction, accommodation, and heterophoria. Jpn J Ophthalmol. 2005; 49(1):23-30. https://doi.org/10.1007/s10384-004-0131-6 PMid:15692770

Gwiazda JE, Hyman L, Norton TT, Hussein ME, Marsh-Tootle W, Manny R, Wang Y, Everett D; COMET Grouup. Accommodation and related risk factors associated with myopia progression and their interaction with treatment in COMET children. Invest Ophthalmol Vis Sci. 2004; 45(7):2143-51. https://doi.org/10.1167/iovs.03-1306

Aldebasi YH. Prevalence of correctable visual impairment in primary school children in Qassim Province, Saudi Arabia. J Optom. 2014; 7(3):168-176. https://doi.org/10.1016/j.optom.2014.02.001 PMid:25000873 PMCid:PMC4087181

Al-Rowaily MA. Prevalence of refractive errors among pre-school children at King Abdulaziz Medical City, Riyadh, Saudi Arabia. Saudi J Ophthalmol. 2010; 24(2):45-8. https://doi.org/10.1016/j.sjopt.2010.01.001 PMid:23960874 PMCid:PMC3729549