1. Pathak S, Chopra H Int J of Phar and Bio Sci :2230-7605.
2. Kompella1 UB, Kadam RS, Lee VHL (2010) NIH 1 : 435-56.
3. Thakur S, Sharma PK, Malviya R Annals of Pharmaco and Pharmaceut 2:1043.
4. Rupenthala ID et al (2011) International Journal of Pharmaceutics 411:69-77.
5. Alonso MJ et al (2010) Advanced Drug Delivery Reviews 62:100-17.
6. Khokhar P, Shukla V (2014) International Journal of Pharma Research & Review 3:29-41.
7. Ankit K et al (2011) European Journal of applied sciences 3: 86-92.
8. Costa VP, Marcelo LO, Freitas FR, Raul CM (2012) Pharmaceutics 4:252-275.
9. Morrison PW, Khutoryanskiy VV (2014) Ther Deliv 5: 297-315.
10. Washington N, Washington WC, Wilson CG (2001) Pharmaceutics: CRC Press: Boca Raton, Florida.
11. Kaur IP et al (2004) International Journal of Pharmaceutics 269: 1-14.
12. Karthika K et al, Int J Pharm Sci 2: 1-5.
13. Smedt SCD et al (2017) Advanced Drug Delivery Reviews.
14. Tao LL et al (2017) Advanced Drug Delivery Reviews 122:31-64.
15. Tekade RK et al (2017) Journal of Controlled Release 268: 19-39.
16. Pathak S, Chopra H (2011) International Journal of Pharmacy and Biological Sciences: 2230-7605.
17. Patel PB (2010) Systematic Reviews in Pharmacy 1.
18. Weisheng Guo et al (2017) Acta Pharmaceutica Sinica B 7: 281-291.
19. Yavuz B et al (2012) The Scientific World Journal.
20. Elisa JC, Antonio C, Joao M, António FA (2017) Nanomedicine: Nanotechnology, Biology, and Medicine 13: 2101-13.
21. Patel A et al (2013) World J Pharmacol 2: 47-64.
22. Madni A et al (2017) International Journal of Pharmaceutics 530: 326-45.
23. Costa VP, Marcelo LO, Freitas FR, Raul CM (2012) Pharmaceutics 2012 : 252-275.
24. Tekade RK et al (2017) Novel Journal of Controlled Release 268:19-39.
25. Khutoryanskiy VV et al (2017)Colloids and Surfaces B: Biointerfaces 155: 538-43.
26. Vandamme TF (2002) Prog Retin Eye Res 21:15-34.
27. Liang H et al (2008) Mol Vis 14:204-16.
28. Lang, Roehrs J, Jani R, Remington R (2009) Ophthalmic preparations: 856.
29. Attama AA, Reichi S, Muller-Goymann (2008) Int J Pharm 355: 307-13.
30. Muller RH et al (2008) Eur J Pharm Biopharm 68:535-544.
31. Fialho SL, Da Silva-Cunha A (2004) Clin Exp Ophthalmol 32:626-32.
32. Garty N, Lusky M, Zalish M (1994) Invest Ophthalmol Vis Sci 35: 2175-86.
33. Civiale C et al (2009) Int J Pharm 378: 177-86.
34. Pignatello R, Bucolo C, Spedalieri G, Maltese A, Puglisi G (2002) Biomaterials 23 : 3247-55.
35. Aggarwal D, Garg A, Kaur LP (2004) J Pharm Pharmacol 56: 1509-17.
36. Loftsson T, Fririksdottir H, Thorsdottir S, Stefansson E (1994) Int J Pharm 104: 181-184.
37. Kristinsson JK et al (1996) Invest Ophthalmol Vis Sci 37:1119-1203.
38. Bochot A, Fattai E, Gullk A, Couyarraze G, Couvreur P (1998) Pharm Res 15 :1364-69.
39. Ahmed I, Patton TF (1987) Int J Pharm 38: 9-21.
40. Vandamme TF, Brobeck L (2005) J Control Release 102: 23-38.
41. Saettone MF, Perini G, Carafa M, Santucci E, Alhaique F (1996) STP Pharma Sci 6 : 94-98.
42. Anatomy of human eye february, 2018.
43. Eye anatomy retrieved from www.valleyeyecare.org. February, 2018.
44. Evans HE, Lahunta A (2010) Guide to the dissection of the dog, 7th edn Missouri: Saunders Elsevier.