1.     Hung NK, Wu CT, Chan SM, Lu CH, Huang YS, Yeh CC, Lee MS, Cherng CH. Effect on postoperative sore throat of spraying the endotracheal tube cuff with benzydamine hydrochloride, 10% lidocaine , 2% lidocaine. Anesth Analg. 2010 Oct;111(4):882-6.

2.     Agha Doost D, Yeganeh Moghaddam A, Jamei B. Etiology of blindness and low vision in an OPD-ophthalmology clinic setting. Journal Faiz Medical University Kashan.2005; (36):27-31.

3.     Pascolini D, Mariotti SP. Global estimates of visual impairment: 2010. The British journal of ophthalmology 2012; 96(5): 614-618.

4.    Babizhayev MA, Deyev AI, Yermakova VN, Brikman IV, Bours J .Lipid peroxidation and cataracts: N-acetylcarnosine as a therapeutic tool to manage age-related cataracts in human and in canine eyes. Drugs R D. 2004; 5(3):125-39.

5.     Shahdadi H, Aminifard MN, Balouchi A, Rafiemanesh H, Allahyari J. Frequency of Cataract in Iran: A Meta-Analysis and Systematic Review. Middle East Afr J Ophthalmol. 2018 Jan-Mar;25(1):40-46.

6.     Fazel F, Jelvani A, Farajzadegan Z. The Trend of Frequency of Acquired Cataract Surgery among Residents of Isfahan, Iran, Admitted in Feiz Hospital. J Isfahan Med Sch 2013; 31(253): 1489-96

7.     Roberto Bellucci, Francesco Bellucci .Comparative efficacy of topical tetracaine solution versus lidocaine in cataract surgery . University of Verona Italy; Faculty of psychology, University of Parma, Parma, Italy .2012 ; 5:1-8

8.    Prata TS, Ushida M, Dorairaj S. Cataract surgery alone cannot be considered an IOP-lowering procedure for open-angle glaucoma patients: an evidence-based perspective. Arq Bras Oftalmol 2015; 78(5): V-VI.

9.     Hojati H, Akhondzadeh G, Sharifnia S, Aloostani S, Arazi S, , Rasoeleslami A. Prevalence of morphology of the age-related Cataract among patients referred to ophthalmology clinics of Amol and Babol cities in 2010. jgnIGN. 2014; 1 (1):32-42.10. Amiri F, Asemi S, Mohammadi R, Haghani H. Age-related cataract risk factors. IJN. 2001; 13 (26):50-56.

11.    Javadi MA, Rezaeai A, Karimian F, Amini H, Pakravan M. Prevalence of cataracts in people over 40 years old living in Tehran. Scientific Journal of the Eye Bank of I.R. Iran. 2004: 9(4): 309-317.

12.    Shirzadeh E, Bolourian A. Prevalence of cataract in the rural population of sabzevar. Journal of Sabzevar University of Medical Sciences, 2008; 14(1): 38-43.

13.    Masoumi R. Epidemiological study of cataract surgery cases in Alavi Hospital, Ardabil. Journal of Ardabil University of Medical Sciences and Health Services.  2004; 3(4): 48-52.

14.    Jamalzehi M, Karimi F, Azimi Khorasani A, Khorraminejad M, Erish M, Mosavi A. Prevalence of Age-related Cataracts in Population Older than 40 Years in Iranshahr. 2019; 25 (1):20-26.

15.    Hekari D, Mohammadzadeh R, Mohammadzadeh R. Risk factors of age-related cataract in patients admitted to. MEDICAL SCIENCES. 2006; 16 (1):39-42.

16.    Weintraub JM, willett WC, Ronser B, et al. Smoking cessation and risk of cataract extraction among US women and men. AMJ Epidemiol 2002;155:72-90.

17.    Nirmalan PK, Robin AL, Katz J, Tielsch JM, Thulasiraj RD, Krishnadas R, et al. Risk Factors for age related cataract in a rural population of southern India: the Aravind Comprehensive Eye Study. Br J Ophthalmol. 2004; 88(8):989-94.

18.    Athanasiov PA, Edussuriya K, Senaratne T, Sennanayake S, Sullivan T, Selva D, Casson RJ. Cataract in central Sri Lanka: prevalence and risk factors from the Kandy Eye Study. Ophthalmic Epidemiol. 2010; 17(1):34-40.

19.    Hojati H, Akhondzadeh G, Sharifnia S, Aloostani S, Arazi S, , Rasoeleslami A. Prevalence of morphology of the age-related Cataract among patients referred to ophthalmology clinics of Amol and Babol cities in 2010. IGN. 2014; 1 (1):32-42.

20.    Theodoropoulou S, Theodossiadis P, Samoli E, Vergados I, Lagiou P, Tzonou A. The epidemiology of cataract: a study in Greece. Acta Ophthalmol. 2011 Mar;89(2):e167-73.

21.    Heydari B, Yaghoubi G, Hosseini Rad S A, Davari M H, Zarban A. The epidemiology of ophthalmic diseases in patients referring to the ophthalmology clinic of Valiasr Hospital in Birjand (2014 –2015). J Birjand Univ Med Sci. 2017; 24 (3):227-235.

22.    Dutta LC, Editor, modern ophthalmology. 3rd. New Delhi, India; Jaypee; 2010

23.    Tan AC, Loon SC, Thean L. Lens Opacities Classification System III: cataract grading variability between junior and senior staff at a Singapore hospital. J Cataract Refract Surg 2008;34:1948-1952.

24.    Karen C. Ultraviolet light exposure and lens opacities, American journal of public health. 1992; 82(12): 1658-1662.

25.    Varma R, Richter GM, Torres M, Foong AW, Choudhury F, Azen SP; Los Angeles Latino Eye Study Group. Fouryear incidence and progression of lens opacities: the Los Angeles Latino Eye Study. Am J Ophthalmol. 2010; 149(5): 728-34.

26.    Delcourt C, Carrière I, Ponton-Sanchez A, Lacroux A, Covacho MJ, Papoz L. Light exposure and the risk of cortical, nuclear, and posterior subcapsular cataracts: the Pathologies Oculaires Liées à l'Age (POLA) study. Arch Ophthalmol. 2000; 118(3):385-92.

27.    Nangia V, Jonas JB, Gupta R, Khare A, Sinha A. Prevalence of cataract surgery and postoperative visual outcome in rural central India Central India Eye and Medical Study. JCataract Refract Surg 2011; 37(11): 1932-8.

28.    Jacobs DS. Cataract in adults. UpToDate [Online]. [cited 2010]; Available from: URL: http://www.uptodate.com/contents/cataract-inadults

29.    Lecuona K, Cook C. South Africa's cataract surgery rates: why are we not meeting our Targets? S Afr Med J 2011; 101(8): 510-2.

30.    Congdon N, Broman KW. Cortical but not posterior subcapsular cataract shows significant familial aggregation in an older population after adjustment for possible shared environmental factors. Am J Ophthalmol 2005;112(1):73-4.

31.    Fazel F, Jelvani A, Farajzadegan Z. The Trend of Frequency of Acquired Cataract Surgery among Residents of Isfahan, Iran, Admitted in Feiz Hospital. J Isfahan Med Sch 2013; 31(253): 1489-96.

32.    Tsai SY, Hsu WM, Cheng CY, Liu JH, Chou P. Epidemiologic study of age-related Cataracts among an elderly Chinese population in Shih-Pai, Taiwan. Ophthalmology. 2003 Jun; 110(6):1089-95.

33.   Foster PJ, Wong TY, Machin D, Johnson GJ, Seah SK. Risk factors for nuclear, cortical
and posterior subcapsular cataracts in the Chinese population of Singapore: the Tanjong
Pagar Survey. Br J Ophthalmol. 2003; 87(9):1112-20.