Harle، Deacon E.؛ Evans، Bruce J. W. (2006). "The Correlation Between Migraine Headache and Refractive Errors". Optometry and Vision Science. ج. 83 ع. 2: 82–7. DOI:10.1097/01.opx.0000200680.95968.3e. PMID:16501409.
Read، SA؛ Collins، MJ؛ Carney، LG (يناير 2007). "A review of astigmatism and its possible genesis". Clinical & Experimental Optometry. ج. 90 ع. 1: 5–19. DOI:10.1111/j.1444-0938.2007.00112.x. PMID:17177660.
Read، SA؛ Collins، MJ؛ Carney، LG (يناير 2007). "A review of astigmatism and its possible genesis". Clinical & Experimental Optometry. ج. 90 ع. 1: 5–19. DOI:10.1111/j.1444-0938.2007.00112.x. PMID:17177660.
Harle، Deacon E.؛ Evans، Bruce J. W. (2006). "The Correlation Between Migraine Headache and Refractive Errors". Optometry and Vision Science. ج. 83 ع. 2: 82–7. DOI:10.1097/01.opx.0000200680.95968.3e. PMID:16501409.
Read، SA؛ Collins، MJ؛ Carney، LG (يناير 2007). "A review of astigmatism and its possible genesis". Clinical & Experimental Optometry. ج. 90 ع. 1: 5–19. DOI:10.1111/j.1444-0938.2007.00112.x. PMID:17177660.
Read، SA؛ Collins، MJ؛ Carney، LG (يناير 2007). "A review of astigmatism and its possible genesis". Clinical & Experimental Optometry. ج. 90 ع. 1: 5–19. DOI:10.1111/j.1444-0938.2007.00112.x. PMID:17177660.