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al-Sereiti MR, Abu-Amer KM, Sen P. Pharmacology of rosemary (Rosmarinus officinalis Linn.) and its therapeutic potentials. Indian journal of experimental biology. Feb 1999;37(2):124-130.

Anekonda TS and Adamus G. Resveratrol prevents antibody-induced apoptotic death of retinal cells through upregulation of Sirt1 and Ku70. BMC Research Notes, 2008; 1(122)

Arevalo JF. Diabetic macular edema: Current management 2013. World J Diabetes. Dec 15 2013;4(6):231-233.

Arrigg PG, Cavallerano J. The role of vitrectomy for diabetic retinopathy. J Am Optom Assoc. Nov 1998;69(11):733-740.

Balakumar P, Rohila A et al. The multifaceted therapeutic potential of benfotiamine. Pharmalogical Research, 2010; 61: 482-488

Bandello F, Berchicci L, La Spina C, Battaglia Parodi M, Iacono P. Evidence for anti-VEGF treatment of diabetic macular edema. Ophthalmic Res. 2012;48 Suppl 1:16-20.

Bazan NG. Cell survival matters: docosahexaenoic acid signaling, neuroprotection and Photoreceptors. Trends in Neuroscience, 2006; 29(5): 263-271.

Bazan NG, Molina MF et al. Docosahexaenoic Acid Signalolipidomics in Nutrition: Significance in Aging, Neuroinflammation, Macular Degeneration, Alzheimer’s, and Other Neurodegenerative Diseases. Annual Reviews in Nutrition, 2011; 31: 321-351.

Bertelsen G, Peto T, Lindekleiv H, Schirmer H, Solbu MD, Toft I, . . . Njolstad I. Tromso eye study: prevalence and risk factors of diabetic retinopathy. Acta ophthalmologica. Dec 2013;91(8):716-721.

Bornsek SM, Ziberna L, Polak T, Vanzo A, Ulrih NP, Abram V, . . . Passamonti S. Bilberry and blueberry anthocyanins act as powerful intracellular antioxidants in mammalian cells. Food chemistry. Oct 15 2012;134(4):1878-1884.

Brazionis L, Rowley K et al. Plasma carotenoids and diabetic retinopathy. British Journal of Nutrition, 2009; 101: 270-277.

Buch H, Vinding T, Nielsen NV. Prevalence and causes of visual impairment according to World Health Organization and United States criteria in an aged, urban Scandinavian population: the Copenhagen City Eye Study. Ophthalmology. Dec 2001;108(12):2347-2357.

Bucolo C, Marrazzo G et al. Fortified Extract of Red Berry, Ginkgo biloba, and White Willow Bark in Experimental Early Diabetic Retinopathy. Journal of Diabetes Research, 2013.

Bweir S, Al-Jarrah M, Almalty AM, Maayah M, Smirnova IV, Novikova L, Stehno-Bittel L. Resistance exercise training lowers HbA1c more than aerobic training in adults with type 2 diabetes. Diabetol Metab Syndr. 2009;1:27.

Cahill MT, Stinnett SS, Fekrat S. Meta-analysis of plasma homocysteine, serum folate, serum vitamin B(12), and thermolabile MTHFR genotype as risk factors for retinal vascular occlusive disease. American journal of ophthalmology. Dec 2003;136(6):1136-1150.

Chen W, Esselman WJ et al. Anti-inflammatory Effect of Docosahexaenoic Acid on Cytokine-Induced Adhesion Molecule Expression in Human Retinal Vascular Endothelial Cells. Investigative Ophthalmology and Visual Science, 2005; 46(11): 4342-4347.

Chen J, Stahl A et al. Current update on retinopathy of prematurity: screening and Treatment. Current Opinions in Pediatrics, 2011; 23(2): 173-178.

Cheng L, Zhang G et al. Systematic Review and Meta-Analysis of 16 Randomized Clinical Trials of Radix Astragali and Its Prescriptions for Diabetic Retinopathy. Evidence-Based Complementary and Alternative Medicine, 2013.

Cheung N, Mitchell P, Wong TY. Diabetic retinopathy. Lancet. Jul 10 2010;376(9735):124-136.

Chew EY. Fatty Acids and Retinopathy. The New England Journal of Medicine, 2011; 264(20): 1970-1971.

Coscas G, Cunha-Vaz J, Soubrane G. Macular edema: definition and basic concepts. Dev Ophthalmol. 2010;47:1-9.

Crawford TN, Alfaro DV et al. Diabetic Retinopathy and Angiogenesis. Current Diabetes Reviews, 2009; 5(1): 8-13

Cummings M, Cunha-Vaz J. Treatment of neovascular age-related macular degeneration in patients with diabetes. Clin Ophthalmol. Jun 2008;2(2):369-375.

Cunha-Vaz J. Lowering the risk of visual impairment and blindness. Diabetic medicine : a journal of the British Diabetic Association. 1998;15 Suppl 4:S47-50.

Delahanty L. "Nutritional Considerations in Type 2 Diabetes Mellitus." UpToDate. UpToDate, Sept. 2013. Web. 19 Sept. 2013. <>.

Dong Y, Liu W-D et al. Effect of Zinc on Vascular Endothelial Growth Factor expression in Retinopathy of diabetic rats. Chinese Journal of Laboratory Diagnosis, 2010.

Du X, Edelstein D et al. Oral benfotiamine plus α-lipoic acid normalizes complication-causing pathways in type 1 diabetes. Diabetologia, 2008; 51: 1930-1932.

Dugdale DC. MedlinePlus. Retina. Updated 5/22/2011. Available at: Accessed 11/20/2013.

Fagiani E, Christofori G. Angiopoietins in angiogenesis. Cancer letters. Jan 1 2013;328(1):18-26.

Fante RJ, Durairaj VD, Oliver SC. Diabetic retinopathy: An update on treatment. The American journal of medicine. Mar 2010;123(3):213-216.

Fraser C. "Classification and Clinical Features of Diabetic Retinopathy." UpToDate. UpToDate, Aug. 2013. Web. 17 Sept. 2013. <>.

Fraunfelder FW. Ocular Side Effects From Herbal Medicines and Nutritional Supplements. American Journal of Ophthalmology, 2004; 138: 639-647.

Grunwald JE, Ying G-S et al. Association Between Retinopathy and Cardiovascular Diseasein Patients with Chronic Kidney Disease (From the Chronic Renal Insufficiency Cohort [CRIC] Study). American Journal of Cardiology, 2012; 110(2): 246-253.

Gupta SK, Kumar B et al. Curcumin Prevents Experimental Diabetic Retinopathy in Rats Through Its Hypoglycemic, Antioxidant, and Anti-Inflammatory Mechanisms. Journal of Ocular Pharmacology and Therapeutics, 2011; 27(2): 123-130.

Hammes H-P, Du X et al. Benfotiamine blocks three major pathways of hyperglycemic damage and prevents experimental diabetic retinopathy. Nature Medicine, 2003; 9(3): 294-299.

Hard A-L, Smith LE et al. Nutrition, insulin-like growth factor-1 and retinopathy of prematurity. Seminars in Fetal and Neonatal Medicine, 2013; 18: 136-142.

Helbig H. [Diabetic tractional retinal detachment]. Klinische Monatsblatter fur Augenheilkunde. Apr 2002;219(4):186-190.

Heng LZ, Comyn O et al. Diabetic retinopathy: pathogenesis, clinical grading, management and future developments. Diabetic Medicine, 2013; 30: 640-650.

Hipkiss AR. Carnosine and its possible roles in nutrition and health. Advances in food and nutrition research. 2009;57:87-154.

Ho S-C, Wu S-P et al. Comparison of anti-glycation capacities of several herbal infusions with that of green tea. Food Chemistry, 2010; 122: 768-774

Hu B-J, Hu Y-N et al. Application of Lutein and Zeaxanthin Nonproliferative Diabetic Retinopathy. Internatinal Journal of Ophthalmology, 2011; 4(3): 303-306.

Huang S-S and Zheng R-L. Rosmarinic acid inhibits angiogenesis and its mechanism of action in vitro. Cancer Letters 239 (2006) 271–280

Huang S-Y, Jeng C et al. Improved haemorrheological properties by Ginkgo biloba extract (Egb 761) in type 2 diabetes mellitus complicated with retinopathy. Clinical Nutrition (2004) 23, 615–621.

Jeffrey BG, Weisinger HS et al.  The Role of Docosahexaenoic Acid in Retinal Function. Lipids, 2001; 36(9): 859-871.

Juarez CP, Muino JC et al.  Experimental retinopathy of prematurity: angiostatic inhibition by nimodipine, ginkgo-biloba, and dipyridamole, and response to different growth factors. European Journal of Ophthalmology, 2000; 10(1): 51-59.

Kaplan N. "Diet in the Treatment and Prevention of Hypertension." UpToDate. UpToDate, Aug. 2013. Web. 19 Sept. 2013. <>.

Karachalias N, Babaci-Jadidi R et al. Increased protein damage in renal glomeruli, retina, nerve, plasma and urine and its prevention by thiamine and benfotiamine therapy in a rat model of diabetes. Diabetologica, 2010; 53: 1506-1516.

Kembhavi SA, Sable N, Vora T, et al. Leukokoria: All That’s White Is Not Retinoblastoma. J Clin Oncol. 2011;29(19):e586-7.

Kemper KJ. Bilberry. The Longwood Herbal Task Force, 1999.

Kim JH, Lee BJ et al. Rosmarinic acid suppresses retinal neovascularization via cell cycle arrest with increase of p21(WAF1) expression. European Journal of Pharmacology 615 (2009) 150–154.

Kim WT and Suh ES. Retinal Protective Effects of Resveratrol via Modulation of Nitric Oxide Synthase on Oxygen-induced Retinopathy. Korean J Ophthalmol 2010;24(2):108-118

Kim YH, Kim YS et al. Resveratrol blocks diabetesinduced early vascular lesions and vascular endothelial growth factor induction in mouse retinas. Acta Ophthalmol. 2012: 90: e31–e37

Klein R, Myers CE, Lee KE, Klein BE. 15-year cumulative incidence and associated risk factors for retinopathy in nondiabetic persons. Archives of ophthalmology. Dec 2010;128(12):1568-1575.

Koby M and Ferri FF. Diabetic Retinopathy. Ferri’s Clinical Advisor. Copyright © 2014. pp. 342-343.

Kollias AN and Ulbig MW. Diabetic Retinopathy. Dtsch Arztebl Int 2010; 107(5): 75–84.

Kowluru RA and Kanwar M. Effects of curcumin on retinal oxidative stress and inflammation in diabetes. Nutrition and Metabolism, 2007; 4: 8-15.

Kowluru RA and Odenbach S. Effect of long-term administration of alpha-lipoic acid on retinal capillary cell death and development of retinopathy in diabetic rats. Diabetes. 2004;53(12):3233-8.

Kumar B, Gupta SK, Nag TC, Srivastava S, Saxena R. Green tea prevents hyperglycemia-induced retinal oxidative stress and inflammation in streptozotocin-induced diabetic rats. Ophthalmic research. 2012;47(2):103-108.

Kumar B, Gupta SK, Saxena R, Srivastava S. Current trends in the pharmacotherapy of diabetic retinopathy. J Postgrad Med. Apr-Jun 2012;58(2):132-139.

LabCorp. LabCorp online. Test Menu. Hemoglobin (Hb) A1c. Available at: Copyright © 2014. Accessed 1/23/2014.

Li Z-Z, Lu X-Z et al. Serum lycopene levels in patients with diabetic retinopathy. European Journal of Ophthalmology, 2010; 20(4): 719-723.

Lim CP, Loo AV, Khaw KW, Sthaneshwar P, Khang TF, Hassan M, Subrayan V. Plasma, aqueous and vitreous homocysteine levels in proliferative diabetic retinopathy. The British journal of ophthalmology. May 2012;96(5):704-707.

Lin J, Bierbaus A et al. Effect of R-(+)-a-Lipoic Acid on Experimental Diabetic Retinopathy. Diabetologia, 2006; 1089-1096.

Liu X, Wei J et al. Antidiabetic effect of PycnogenolR French maritime pine bark extract in patients with diabetes type II. Life Sciences, 2004; 75: 2505-2513.

Lorenzi M. The polyol pathway as a mechanism for diabetic retinopathy: attractive, elusive, and resilient. Experimental diabetes research. 2007;2007:61038.

Losso JN, Truax RE, Richard G. trans-resveratrol inhibits hyperglycemia-induced inflammation and connexin downregulation in retinal pigment epithelial cells. Journal of agricultural and food chemistry. Jul 28 2010;58(14):8246-8252.

Mactier H, McCulloch DL et al. Vitamin A Supplementation Improves Retinal Function in Infants at Risk of Retinopathy of Prematurity. The Journal of Pediatrics, 2012; 160: 954-959.

Mantagos IS, Vanderveen DK et al. Emerging Treatments for Retinopathy of Prematurity. Seminars in Ophthalmology, 2009; 24: 82-86.

Marshall J. The Ageing Retina: Physiology or Pathology. Eye, 1987; 1: 282-295.

Matsunaga N, Chikaraishi Y et al. Vaccinium myrtillus (Bilberry) Extracts Reduce Angiogenesis In Vitro and In Vivo. eCAM, 2010; 7(1): 47-56.

McCulloch DK. Pathogenesis of diabetic retinopathy. UpToDate. Available at: Last updated 1/11/2013a. Accessed 9/24/2013.

McCulloch DK. Screening for diabetic retinopathy. UpToDate. Available at: Last updated 1/9/2013b. Accessed 9/24/2013.

McDonald L, Lee GR, Degooyer TE, McDonald D, Canning P, Kelso EJ, . . . Stitt AW. Effects of an endothelin receptor antagonist on a model of hypertensive retinopathy. Ophthalmic research. 2010;43(2):99-107.

Miao X, Sun W, Miao L, Fu Y, Wang Y, Su G, Liu Q. Zinc and diabetic retinopathy. Journal of diabetes research. 2013;2013:425854.

Miyake S, Takahashi N, Sasaki M, Kobayashi S, Tsubota K, Ozawa Y. Vision preservation during retinal inflammation by anthocyanin-rich bilberry extract: cellular and molecular mechanism. Lab Invest. Jan 2012;92(1):102-109.

Motomura K, Fujiwara Y et al. Astragalosides Isolated from the Root of Astragalus Radix Inhibit the Formation of Advanced Glycation End Products. Journal of Agricultural and Food Chemistry, 2009; 57: 7666-7672.

Moustafa SA. Zinc might protect oxidative changes in the retina and pancreas at the early stage of diabetic rats. Toxicology and Applied Pharmacology, 2004; 201: 149-155.

Mrudula T, Suryanrayana P et al. Effect of curcumin on hyperglycemia-induced vascular endothelial growth factor expression in streptozotocin-induced diabetic rat retina. Biochemical and Biophysical Research Comminications, 2007; 361: 528-532.

Mukherjee PK, Marcheselli VL et al. Neuroprotectin D1: A docosahexaenoic acid-derived docosatriene protects human retinal pigment epithelial cells from oxidative stress. PNAS, 2004; 101(22): 8491-8496.

Natoli R, Valter K et al. 670nm Photobiomodulation as a Novel Protection against Retinopathy of Prematurity: Evidence from Oxygen Induced Retinopathy Models. PLOS One, 2013; 8(8).

Nawaz MI, Abouammoh M et al. Novel drugs and their targets in the potential treatment of diabetic retinopathy. Medical Science Monitor, 2013; 19: 300-308.

Nebbioso M, Pranno F, Pescosolido N. Lipoic acid in animal models and clinical use in diabetic retinopathy. Expert opinion on pharmacotherapy. Sep 2013;14(13):1829-1838.

NEI. National Eye Institute. Facts About Diabetic Retinopathy. NIH: National Eye Institute website. Health Information page. Available at: 6/2012. Accessed 1/23/2014.

Noonan JE, Jenkins AJ, Ma JX, Keech AC, Wang JJ, Lamoureux EL. An update on the molecular actions of fenofibrate and its clinical effects on diabetic retinopathy and other microvascular end points in patients with diabetes. Diabetes. Dec 2013;62(12):3968-3975.

Oh J-H, Oh J et al. Effects of Ginkgo biloba Extract on Cultured Human Retinal Pigment Epithelial Cells under Chemical Hypoxia. Current Eye Research, 2013; 38(10): 1072–1082.

Ong, Y-T, Wong TY et al. Hypertensive Retinopathy and Risk of Stroke. Hypertension, 2013; 62: 706-711.

Pawlik D, Lauterbach R et al. Fish-Oil Fat Emulsion Supplementation Reduces the Risk of Retinopathy in Very Low Birth Weight Infants: A Prospective, Randomized Study. Journal of Parenteral and Enteral Nutrition, 2013.

Paysse E. "Retinopathy of Prematurity." UpToDate. UpToDate, Aug. 2013. Web. 17 Sept. 2013. <>.

Pfister F, Riedl E et al. Oral Carnosine Supplementation Prevents Vascular Damage in Experimental Diabetic Retinopathy. Cellular Physiology and Biochemistry, 2011; 28: 125-136.

PKC-DRS Study Group. The effect of ruboxistaurin on visual loss in patients with moderately severe to very severe nonproliferative diabetic retinopathy: initial results of the Protein Kinase C beta Inhibitor Diabetic Retinopathy Study (PKC-DRS) multicenter randomized clinical trial. Diabetes. Jul 2005;54(7):2188-2197.

Polack S, Yorston D, Lopez-Ramos A, Lepe-Orta S, Baia RM, Alves L, . . . Kuper H. Rapid assessment of avoidable blindness and diabetic retinopathy in Chiapas, Mexico. Ophthalmology. May 2012;119(5):1033-1040.

Prasad S. "Screening for Diabetic Retinopathy: An Overview.", 1999. Web. 17 Sept. 2013. <>.

Praveena S, Sujatha P et al. Stufy of Microelements in Diabetic Retinopathy. Journal of Evolution of Medical and Dental Sciences, 2013; 2(6): 531-537.

Rahman MR, Arslan MI et al. Diabetic Retinopathy and Homocysteine in Newly Diagnosed Type 2 Diabetes Mellitus. Delta Med Col J.Jul 2013;1(2):37-41

Rema M and Pradeepa R. Diabetic Retinopathy: An Indian Perspective. Indian Journal of Medical Research, 2007; 125: 297-310

Roberts R, Luan H et al. -Lipoic Acid Corrects Late-Phase Supernormal Retinal Oxygenation Response in Experimental Diabetic Retinopathy. Invest Ophthalmol Vis Sci. 2006;47: 4077–4082).

Rodriguez SK, Guo W et al. Green tea catechin, epigallocatechin-3-gallate, inhibits vascular endothelial growth factor angiogenic signaling by disrupting the formation of a receptor complex. International Journal of Cancer, 2006; 118: 1635-1644.

Rosberger DF. Diabetic retinopathy: current concepts and emerging therapy. Endocrinology and metabolism clinics of North America. Dec 2013;42(4):721-745.

Sapieha P, Stahl A et al. 5-Lipoxygenase Metabolite 4-HDHA Is a Mediator of the Antiangiogenic Effect of w-3 Polyunsaturated Fatty Acids. Science Translational Medicine, 2011; 3.

Sapieha P, Chen J et al. Omega-3 polyunsaturated fatty acids preserve retinal function in type 2 diabetic mice.  Nutrition and Diabetes (2012) 2, e36

Sato Y, Ouchi K et al. Relationship between metformin use, vitamin B12 deficiency, hyperhomocysteinemia and vascular complications in patients with type 2 diabetes. Endocrine Journal, 2013.

Satyanarayana A, Balakrishna N et al. Status of B-Vitamins and Homocysteine in Diabetic Retinopathy: Association with Vitamin-B12 Deficiency and Hyperhomocysteinemia. PLOS One, 2011;6(11):e26747.

Schonlau F and Rohdewald P. Pycnogenol for Diabetic Retinopathy. International Ophthalmology, 2002; 24: 161-171.

Sim D, Fruttiger M. Keeping blood vessels out of sight. eLife. 2013;2:e00948.

Simo R, Roy S et al. Fenofibrate: A New Treatment for Diabetic Retinopathy. Molecular Mechanisms and Future Perspectives. Current Medicinal Chemistry, 2013; 20(26): 3258-3266.

Simo R, Hernandez C. Neurodegeneration in the diabetic eye: new insights and therapeutic perspectives. Trends in endocrinology and metabolism: TEM. Jan 2014;25(1):23-33.

Singh R, Ramasamy K, Abraham C, Gupta V, Gupta A. Diabetic retinopathy: an update. Indian J Ophthalmol. May-Jun 2008;56(3):178-188.

Skopinski P, Szaflik J, Duda-Król B, et al. Suppression of angiogenic activity of sera from diabetic patients with non-proliferative retinopathy by compounds of herbal origin and sulindac sulfone. Int J Mol Med. 2004; 14(4):707-11.

Smiddy WE, Flynn HW, Jr. Vitrectomy in the management of diabetic retinopathy. Surv Ophthalmol. May-Jun 1999;43(6):491-507.

Smolek MK, Notaroberto NF et al. Intervention with vitamins in patients with nonproliferative diabetic retinopathy: a pilot study. Clinical Ophthalmology, 2013; 7: 1451-1458.

Soufi FG, Mohammad-nejad D et al.  Resveratrol improves diabetic retinopathy possibly through oxidative stress – nuclear factor kB – apoptosis pathway. Pharmcological Reports, 2012; 64: 1905-1914.

Spadea L and Balestrazzi E. Treatment of Cascular Retinopathies with Pycnogenol. Phytotherapy Research, 2001; 15: 219-223.

Srinivasan P, Libbus B et al. Mining MEDLINE: Postulating a Beneficial Role for Curcumin Longa in Retinal Diseases. Biolink 2004: 33-40

Steigerwalt R, Belcaro G et al. Pycnogenol® Improves Microcirculation, Retinal Edema, and Visual Acuity in Early Diabetic Retinopathy. Journal of Ocular Pharmacology and Therapeutics, 2009; 25(6): 537-540.

Steigerwalt R, Nebbioso M et al. Meriva, a Lecithinized Curcumin Delivery System, in Diabetic Microangiopathy and Retinopathy. Panminerva Medicine, 2012; 54: 11-16

Tang J, Du Y et al. Low-Intensity Far-Red Light Inhibits Early Lesions That Contribute to Diabetic Retinopathy: In Vivo and In Vitro. Investigational Ophthalmology and Visual Science, 2013; 54: 3681-3690.

Tarr JM, Kaul K et al. Pathophysiology of Diabetic Retinopathy. ISRN Ophthalmology, 2013.

Tikhonenko M, Lydic TA et al. N-3 Polyunsaturated Fatty Acids Prevent Diabetic Retinopathy by Inhibition of Retinal Vascular Damage and Enhanced Endothelial Progenitor Cell Reparative Function. PLOS One, 2013; 8(1)

Torpy JM, Glass TJ, Glass RM. REtinopathy. JAMA : the journal of the American Medical Association. 2007;298(8):944-944.

Tracy TS and Kingston RL. Herbal Products: Toxicology and Clinical Pharmacology. Totowa, NJ: Humana, 2007. Print.

Tremolada G, Lattanzio R, Mazzolari G, Zerbini G. The therapeutic potential of VEGF inhibition in diabetic microvascular complications. Am J Cardiovasc Drugs. 2007;7(6):393-398.

Tsuneki H, Ishizuka M et al. Effect of green tea on blood glucose levels and serum proteomic patterns in diabetic (db/db) mice and on glucose metabolism in healthy humans. BMC Pharmacology, 2004; 4:18

Viswanath K, McGavin DD. Diabetic retinopathy: clinical findings and management. Community Eye Health. 2003;16(46):21-4.

Vlassara H, Uribarri J. Advanced Glycation End Products (AGE) and Diabetes: Cause, Effect, or Both? Current diabetes reports. Jan 2014;14(1):453.

Wong TY and Mitchell P. Hypertensive Retinopathy. New England Journal of Medicine, 2004; 251: 2310-7.

Wong TY, Klein R, Duncan BB, Nieto FJ, Klein BE, Couper DJ, . . . Sharrett AR. Racial differences in the prevalence of hypertensive retinopathy. Hypertension. May 2003;41(5):1086-1091.

Yan X, Ren-Hong T et al. Clinical study of Astragalus injection integreted compound salvia injections on nonproliferative diabetic retinopathy. Journal of Traditional Chinese Medicine University of Hunan, 2011.

Yanoff M and Li W. Diabetic Retinopathy. First Consult. Clinical Key web page. Available at: Last updated 2/23/2010.  Accessed 9/23/13.

Yar AS, Menevse S et al. Investigation of Ocular Neovascularization–Related Genes and Oxidative Stress in Diabetic Rat Eye Tissues After Resveratrol Treatment. J Med Food 15 (4) 2012, 391–398.

Yau JWY, Rogers SL et al. Global Prevalence and Major Risk Factors of Diabetic Retinopathy. Diabetes Care, 2012; 35: 556-564.

Zafra-Stone S, Yasmin T et al. Berry Anthocyanins as Novel Antioxidants in Human Health and Disease Prevention. Moleculat Nutrition and Food Research, 2007; 51: 675-683

Zaghlool SS, Hanafy LK et al. Histological and immunohistochemical study on the protective effect of Ginkgo biloba extract against glutamate-induced neurotoxicity in male albino rat retinal cells. The Egyptian Journal of Histology, 2012; 35: 176-188.

Zhang X, Saaddine JB et al. Prevalence of Diabetic Retinopathy in the United States, 2005-2008. JAMA, 2010; 304(6): 649-656. ​