Publications by authors named "Sridevi Nair"

Purpose: To describe the use of crescentic autograft as a graft salvage technique for inadvertently undersized donor lenticules in superficial anterior lamellar keratoplasty (SALK).

Methods: A prospective interventional study included 5 eyes of 4 patients who underwent SALK and had an inadvertently undersized donor lenticule. The described technique involves the preparation of a crescent-shaped graft from the host lenticule itself that is matched to fit into the remaining bare recipient stromal bed.

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A modified phaco chop technique for nuclear emulsification in posterior polar cataracts with nuclear sclerosis that avoids hydrodissection or nuclear rotation has been described. After performing a vertical chop maneuver to divide the nucleus, two pie-shaped nuclear fragments are removed from either side of the initial chop. The remaining nuclear fragments are then sequentially tumbled toward the center using the second instrument and emulsified while maintaining an intact epinuclear shell, which safeguards the fragile posterior capsule.

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Dry eye disease is the most common complication and a frequent cause of patient dissatisfaction after corneal laser refractive surgery, which includes laser-assisted in situ keratomileusis (LASIK), small-incision lenticule extraction (SMILE), and photorefractive keratectomy (PRK). It has a complex, multifactorial etiology and is characterized by a highly variable clinical presentation. A detailed preoperative screening and optimization of the ocular surface prior to refractive surgery are the key to minimizing the incidence and severity of postoperative dry eye.

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Purpose: To validate the international chronic ocular graft-versus-host disease (GVHD) diagnostic criteria (ICCGVHD) compared to the National Institute of Health diagnostic criteria 2014 (NIH2014) for chronic ocular GVHD.

Methods: Between 2013 and 2019, the study enrolled 233 patients with or without chronic ocular GVHD combined with the presence or absence of systemic chronic GVHD in an internationally prospective multicenter and observational cohort from 9 institutions. All patients were evaluated for four clinical parameters of ICCGVHD.

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Purpose: To report the clinical profile and treatment outcomes of patients with culture-positive Acremonium keratitis.

Methods: This is a retrospective observational study. Medical records of all patients treated in a tertiary eye hospital for culture positive infective keratitis from March 2016 to February 2021 were screened, of which those positive for Acremonium species on fungal culture were reviewed.

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A man aged 26 years presented with complaints of diminution of vision in his right eye for 1 year following a fist injury. He had a history of laser-assisted in situ keratomileusis in both eyes 5 years earlier. On examination, his uncorrected distance visual acuity (UDVA) in the right eye was 1.

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Purpose: To evaluate the impact of taping the upper mask edge on ocular surface stability, dry eye symptomology, and tear osmolarity in N95 mask users.

Design: Prospective interventional before-and-after study.

Methods: Fifty eyes of 50 health care workers regularly using N95 masks were included.

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We describe a modified technique of intraoperative optical coherence tomography (iOCT)-guided removal of post-laser-assisted in situ keratomileusis (LASIK) epithelial ingrowth with interface ethyl alcohol and mitomycin C application to prevent a recurrence. Epithelial ingrowth was visualized as hyperreflective deposits in the interface on iOCT, and the location and extent were noted at the beginning of the procedure. A simple dimple-down maneuver was performed to help identify the circumference of the LASIK flap.

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Postoperative astigmatism is one of the common complications affecting visual outcomes after a penetrating keratoplasty. It can result from various factors related to host, donor and surgical technique, resulting in suboptimal visual outcome. While some of the measures taken during preoperative planning and during actual surgery can reduce the magnitude of postoperative astigmatism, postoperative correction of astigmatism is often required in cases with high degrees of astigmatism.

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Purpose: The aim of the study was to evaluate the effect of intraoperative optical coherence tomography (i-OCT) on anatomic and cosmetic outcomes of intrastromal keratopigmentation (i-KTP) performed by novice lamellar corneal surgeons.

Methods: Thirty patients presenting with unilaterally disfiguring corneal scar and nil visual prognosis were subjected to i-OCT-guided intrastromal tattooing with rotring ink, by ophthalmology residents undergoing training in corneal surgeries at our center, who were later asked for a subjective feedback and mean stromal depth dissected was measured objectively. All patients were followed up for 9 months after surgery, and the subjective satisfaction of the patient, an independent observer, and surgeon was graded as poor, good, and excellent.

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As the world comes to terms with the changes brought on by the appearance and spread of Covid-19, there is an increase in fear and anxiety levels. The World Health Organization has stressed on the need to focus on mental health, as the epidemic affects both young and old. One of the biggest challenges is that the situation has no precedent.

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Ocular graft-versus-host disease (oGVHD) occurs as a complication following hematopoietic stem cell transplantation and is associated with significant ocular morbidity resulting in a marked reduction in the quality of life. With no current consensus on treatment protocols, management becomes challenging as recurrent oGVHD often refractory to conventional treatment. Most authors now diagnose and grade the disease based on criteria provided by the National Institutes of Health Consensus Conference (NIH CC) or the International Chronic oGVHD (ICCGVHD) consensus group.

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Purpose: To describe the incidence and morphological characteristics of posterior polar cortical disc defect (PPCDD) sign observed during phacoemulsification in posterior polar cataract (PPC).

Setting: Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.

Design: Prospective case series.

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