IERG Abstracrt Book.indd - LV Prasad Eye Institute

Clinical Poster Sessions35.85 ±9.83 years (SD). Mean duration of symptoms was 50.33 ±137.56 days. Presenting visualacuity ranged from 20/60 to light perception. One-fourth of the patients had a referral diagnosisof HIV + at presentation, while the remaining were diagnosed based on clinical features orpresence of Herpes zoster Ophthalmicus (HZO), which was the most common association(11 eyes, 39.28%). On microbiology, smear positivity was seen in 10 eyes (35.14%) and culturepositivity in 35.7%. 14 eyes (50%) resolved with medical treatment and simple tarsorrhaphy(8 eyes, 28%), 4 eyes (14%) underwent penetrating keratoplasty and one eye underwentevisceration. The final visual outcome ranged was 20/400 or worse in 18 eyes (64%)., while theremaining had visual acuities ranging from 20/40 to 20/200.107Conclusions: In our series, microbial keratitis with past HZO was noted in 40%. Fungal andbacterial keratitis occurred with similar frequency. Although upto half of the cases resolvedmedically, the final visual outcome was usually poor due to corneal scarring.ICP 030Comparison Of Retinoscope and Autorefractometer performance with SubjectiveRefractionSouvik Mandal, Santanu Jana, Priyanka ModiL V Prasad Eye Institute, Bhubaneswar, India.Purpose: Purpose of the study was to estimate the agreement between Autorefractor(TOPCON; RM-8800) and retinoscopy (HEINE; BETA 200) with subjective subjectiverefraction.Methods: Measurement of autorefractor withTopcon RM8800 and retinoscopy wasperformed on 108 eyes of equal healthy adults without cycloplegia and compared with subjectiverefraction. The age range was 10 to 40 years( Mean 22.67+5.22). Vector analysis was done forcylindrical component. Paired “t” test and Bland Altman plot was used to compare the data.Medcalc ver 3.0 and MS exel were used.Results: Measurement of spherical equivalent values with autorefractor yields more negativevalues (Sub=-2.55+2.8D, CanonRM8800= -2.71+2.97D, retinoscope = -2.66+2.80D). For JCC axisat 45°(J45) Autorefractor shows more positive values(Sub = -0.002+0.263D,CanonRM8800=0.0347+0.34,Retinoscope=0.005+0.24). For Jackson Cross Cylinder axis 0°(J0) Autorefractorshows less values (Sub=0.088+0.43D, CanonRM8800=0.081+0.58, Retinscope=0.091+0.42).In Bland Altman plot, Autorefractor shows higher degree of interval for all three values ofSpherical equivalent, J0 and J45 i.e. +1.7 to -1.3 at 0.2 mean bias, +0.7 to -0.68 at 0.01 mean biasand +1.1 to -1.2 at 0 mean bias respectively. For retinoscopy it is +0.81 to -0.60 at 0.1 meanbias,+0.22 to -0.23 at 0 bias, +0.98 to –0.94 at -0.01 mean bias for Spherical equivalent, J0 andJ45 respectively.Conclusions: Present study shows retinoscopy with experienced optometrist gives betterresults than autorefractors. But no comments can be done on intra-observer and inter-observervariability for retinoscopic refraction.