Dear Editor,
We greatly appreciate the interest that Dr. Sabouri has shown in our article, as well as his invaluable comments about our study that was recently published in your esteemed journal.[1]
I would like to respectfully draw your attention to a limitation in our study that was briefly discussed in the manuscript: the lack of a comparative group. We agree with Dr. Sabouri's reasonable concerns based on literature in this field[2,3] that utilized each study subject's fellow eye as a comparative control during any intervention – this was considered as an advantageous study design. Indeed, our future study designs will respect this valuable insight.
The other point emphasized by Dr. Sabouri was the importance of ethnicity in the ocular characteristics of a patient group,[4,5] which has been confirmed in multiple epidemiological studies. Regarding this point, I respectfully draw your attention to the Discussion section (paragraph 7, line 6), wherein we discussed the importance of ethnicity in addition to other ocular parameters that were not evaluated in our study subjects.[1] Furthermore, recently, we highlighted (in Shiraz) the importance of ethnicity[6] in measurements of central corneal thickness (CCT) and intraocular pressure (IOP) within a study of Persian children. Once again, the omission of ethnicity information could be considered a limitation in our study. Future studies, which specifically evaluate subjects’ ethnicities and socioeconomic backgrounds, are warranted to determine whether these factors influence corneal endothelial cell density and cell morphology.
Financial Support and Sponsorship
Nil.
Conflicts of Interest
There are no conflicts of interest.
REFERENCES
- 1.Jamali H, Jahanian S, Gharebaghi R. Effects of Laser Peripheral Iridotomy on corneal Endothelial cell Density and cell Morphology in Primary Angle closure Suspect Subjects. J Ophthalmic Vis Res. 2016;11(3):258–262. doi: 10.4103/2008-322X.188395. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 2.Steinert RF, Aker BL, Trentacost DJ, Smith PJ, Tarantino N. A prospective comparative study of the AMO ARRAY zonal-progressive multifocal silicone intraocular lens and a monofocal intraocular lens. Ophthalmology. 1999;106(7):1243–1255. doi: 10.1016/S0161-6420(99)00704-6. [DOI] [PubMed] [Google Scholar]
- 3.Heatley CJ, Spalton DJ, Hancox J, Kumar A, Marshall J. Fellow eye comparison between the 1CU accommodative intraocular lens and the Acrysof MA30 monofocal intraocular lens. American Journal of Ophthalmology. 2005;140(2):207. doi: 10.1016/j.ajo.2005.02.057. [DOI] [PubMed] [Google Scholar]
- 4.Moss HE, Gao W, Balcer LJ, Joslin CE. Association of race/ethnicity with visual outcomes following acute optic neuritis: An analysis of the Optic Neuritis Treatment Trial. JAMA ophthalmology. 2014;01;132(4):421–427. doi: 10.1001/jamaophthalmol.2013.7995. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 5.Chen RI, Barbosa DT, Hsu CH, Porco TC, Lin SC. Ethnic differences in trabecular meshwork height by optical coherence tomography. JAMA ophthalmology. 2015;133(4):437–441. doi: 10.1001/jamaophthalmol.2014.5864. [DOI] [PubMed] [Google Scholar]
- 6.Nejabat M, Heidary F, Talebnejad MR, Salouti R, Nowroozzadeh MH, Masoumpour M, et al. Correlation Between Intraocular Pressure and Central Corneal Thickness in Persian children. Ophthalmology and therapy. 2016;5(2):235–243. doi: 10.1007/s40123-016-0063-5. [DOI] [PMC free article] [PubMed] [Google Scholar]
