Bhattacharjee, HarshaBhattacharjee, KasturiDas, DipankarJaveri, HenalBuragohain, Suklengmung2023-08-252023-08-252022-08Choudhari Nikhil S, Kumar Sanjay, Richhariya Ashutosh, Krishnamurthy Rashmi, Priya Ruchi, Garudadri Chandra Sekhar. Adaptive optics scanning laser ophthalmoscopy may support early diagnosis of glaucoma. Indian Journal of Ophthalmology. 2022 Aug; 70(8): 2877-28821998-36890301-4738http://imsear.searo.who.int/handle/123456789/224565Purpose: To compare image characteristics of retinal nerve fiber layer (RNFL) between glaucoma patients and healthy controls using adaptive optics scanning laser ophthalmoscopy (AOSLO). Methods: This was a cross-sectional pilot study with two groups: a glaucoma group with patients with moderate or severe glaucoma as per the Hodapp–Parrish–Anderson classification system and a control group with healthy individuals. The optic nerve damage in moderate glaucoma was predominantly located in only one hemisphere; the other hemisphere was un- or minimally affected on optical coherence tomography and automated perimetry and is referred to as early glaucoma. The structure of RNFL bundles and gain (%) in RNFL images with mean pixel values between 15 and 35 were analyzed. Imaging was performed one degree away from the optic disc margin at two and four cardinal clock positions in the glaucoma and control groups, respectively. The field of view was 1.3° at 2.3 ? resolution. We studied one eye per participant. Results: There were 11 glaucoma patients and 7 healthy controls. Imaging was successful at 88% of the locations in controls and early glaucoma; the reflectivity differed significantly (0.51 and 0.56, respectively, P < 0.001) but not the structure of RNFL bundles (Cohen’s Kappa 0.11) between them. In patients with moderate and severe glaucoma, imaging was successful only at 46% of the locations; RNFL bundles were not discernible, and RNFL reflectivity did not differ from those with early glaucoma (P < 0.11). Conclusion: The recorded gain (%) of RNFL images obtained using AOSLO could be an objective indicator of early glaucomaAdaptive optics scanning laser ophthalmoscopy (AOSLO) in glaucomaearly detection of glaucomareflectivity of retinal nerve fiber layeJournal ArticleIndiaV S T Glaucoma Center, Dr. Kallam Anji Reddy Campus, L. V. Prasad Eye Institute, Hyderabad, Telangana, IndiaEngineering Group, Dr. Kallam Anji Reddy campus, L. V. Prasad Eye Institute, Hyderabad, Telangana, India