IERG Abstracrt Book.indd - LV Prasad Eye Institute

54 Oral Presentationof aqueous humour and serum for rubella, herpes simpex virus (HSV), cytomegalo virus (CMV),varicella zoster virus (VZV) and toxoplasma was done using standard primers.Results: Ninety patients were enrolled in the study in three groups, which were comparablefor age, gender and laterality of ocular involvement. All patients had diffuse keratic precipitatesin the FHU group, with iris nodules noted in one case each in uveitis and FHU group. PCRwas negative for detection of VZV, CMV, toxoplasma and rubella in all three groups, both fromserum and aqueous. Only one eye had PCR positive for HSV in the FHU group but this wasnot statistically significant (p=0.42).Conclusions: In our study, there was no association of infectious agents with Fuchs’ uveitis.The exact etiology in this disease still remains answered.Paper Session VII, Glaucoma, August 1, 2010, 14.30 - 16.00 hrsChairs: Kunal Ray and G Chandra SekharIPT 038Comparison Between Optical Low Coherence Reflective Non contact PachymeterAnd Ultrasonic Pachymeter In Normals And Glaucoma patientsReetika Sharma, Lalit Tejwani, Anita Panda, Amit Sobti, Tanuj DadaDr R P Centre for Ophthalmic sciences, All India Institute of Medical Sciences, New Delhi,India.Purpose: To compare central corneal thickness measurements of two pachymetry devices innormals and glaucomatous eyes.Methods: Central corneal thickness was measured in total of 367 eyes (282 normal,84 glaucomatous - 54 PACG & 30 POAG) via (I)optical low coherence reflective non contactpachymeter (Nidek NT-530P) followed by (II) ultrasonic pachymeter in an adult populationaged between 20-70 yrs.Results: Mean CCT in normal eyes was comparable by two methods ( 525.993 + 36.09 ingroup I vs 529.443+ 38.496 microns in group II respectively, p =0.46) with Pearson correlationbeing 0.882 and Interclass correlation coefficient being 0.9350, p=0.002. For glaucomatouseyes, mean CCT was 530.082+36.63 and 532.294+32.717 microns respectively with Pearsoncoefficient being 0.735 and ICC being 0.882, p= 0.426.Conclusions: Non contact pachymetry with the new optical low coherence pachymetercorrelates well with ultrasonic pachymetry amd may be used as the standard tmethod fordetermination of central corneal thickness in routine clinical practice.