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   Table of Contents      
LETTER TO THE EDITOR
Year : 2015  |  Volume : 63  |  Issue : 3  |  Page : 288-289

Evaluation of anterior chamber inflammation


1 Department of Ophthalmology, Hakkari Military Hospital, Hakkari, Turkey
2 Department of Ophthalmology, GATA Haydarpasa Training Hospital, Istanbul, Turkey
3 Department of Ophthalmology, Kasimpasa Military Hospital, Istanbul, Turkey

Date of Web Publication13-May-2015

Correspondence Address:
Dr. Yakup Aksoy
Department of Ophthalmology, Hakkari Military Hospital, Hakkari
Turkey
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.156952

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How to cite this article:
Aksoy Y, Kar T, Çolakoglu K. Evaluation of anterior chamber inflammation. Indian J Ophthalmol 2015;63:288-9

How to cite this URL:
Aksoy Y, Kar T, Çolakoglu K. Evaluation of anterior chamber inflammation. Indian J Ophthalmol [serial online] 2015 [cited 2019 Nov 18];63:288-9. Available from: http://www.ijo.in/text.asp?2015/63/3/288/156952

Dear Sir,

We read the article ''comparison of intracameral dexamethasone and intracameral triamcinolone acetonide injection at the end of phacoemulsification surgery" by Gungor et al. With a great interest. [1] The authors aimed to compare the results of intracameral dexamethasone and intracameral triamcinolone acetonide injection in patients that underwent cataract surgery with phacoemulsification. And they concluded that these two treatment modalities were similarly effective in controlling postoperative inflammation following phacoemulsification. However, the intraocular pressures (IOPs) on postoperative 1 st day were higher in patients receiving intracameral triamcinolone acetonide. Therefore using intracameral dexamethasone seemed to be a better alternative to apply at the end of surgery to suppress the inflammation during the first 24 h. We congratulate the authors for their lightening study about an actual subject and would like to make some contributions and criticism about study.

The authors used the slit lamp technique to evaluate the anterior chamber inflammation. The thickness and height of the slit light were 0.5 mm × 8 mm. A standardization of grading anterior chamber cell and flare level is important for reporting clinical data and scientific communication. In literature there are commonly used a few grading methods such as scale of Hogan  et al. and scale of Standardization of Uveitis Nomenclature working group. [2] Measures of the slit light was 1 mm × 1 mm in both of these scales. Only count of the cells in each grade was a little bit different from each other. The measures of the slit light used in this study were different from these two accepted scale and this may change the results. On the other hand, slit lamp technique is a subjective method and has some limitations. If anterior chamber is flue due to reasons other than cell and flare it will be very difficult to determine the cell count and flare level correctly. Hence, it can be much more difficult, especially in a triamcinolone acetonide injected anterior chamber.

Laser flare/cell meter is an alternative quantitative method to measure intraocular inflammation and has been reported to be superior to slit lamp flare and slit lamp cells to assess and monitor anterior chamber inflammation. [3] On the other hand, this measurement method does not look suitable for triamcinolone acetonide injected anterior chambers. Because this technique measures all particles in aqueous containing triamcinolone acetonide crystals. Another way of evaluating anterior chamber inflammation is measuring the level of inflammatory mediators such as prostaglandin E2, tumor necrosis factor, nitric oxide, interleukin-8 (IL-8), IL-9, IL-10, IL-12, interferon gamma (IFN-α), IFN-γ in aqueous sample. This alternative way of detecting anterior chamber inflammation could be a better choice in triamcinolone acetonide injected patients. [4]

Intraocular pressure is a dynamic parameter with a circadian rhythm and has fluctuations. It's commonly measured higher in night time (2-4 a.m.) and lesser in day time (2-4 p.m.). The average IOP difference between night time and day time is 4-5 mmHg. [5] In this study, the authors did not inform when IOP measurements were performed. Hence, this may change the results also.

 
  References Top

1.
Gungor SG, Bulam B, Akman A, Colak M. Comparison of intracameral dexamethasone and intracameral triamcinolone acetonide injection at the end of phacoemulsification surgery. Indian J Ophthalmol 2014;62:861-4.  Back to cited text no. 1
[PUBMED]  Medknow Journal  
2.
Jabs DA, Nussenblatt RB, Rosenbaum JT, Standardization of Uveitis Nomenclature (SUN) Working Group. Standardization of uveitis nomenclature for reporting clinical data. Results of the first international workshop. Am J Ophthalmol 2005;140:509-16.  Back to cited text no. 2
    
3.
Gupta V, Gupta A. Ancillary investigations in uveitis. Indian J Ophthalmol 2013;61:263-8.  Back to cited text no. 3
[PUBMED]  Medknow Journal  
4.
Chua J, Vania M, Cheung CM, Ang M, Chee SP, Yang H, et al. Expression profile of inflammatory cytokines in aqueous from glaucomatous eyes. Mol Vis 2012;18:431-8.  Back to cited text no. 4
    
5.
Sihota R, Saxena R, Gogoi M, Sood A, Gulati V, Pandey RM. A comparison of the circadian rhythm of intraocular pressure in primary phronic angle closure glaucoma, primary open angle glaucoma and normal eyes. Indian J Ophthalmol 2005;53:243-7.  Back to cited text no. 5
[PUBMED]  Medknow Journal  




 

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