Browsing by Author "Renu Thakur"

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    Comparison of Stereopsis, Contrast Sensitivity and Near Points of Accommodation In Patients With Degree of Myopia
    (Chitkara University Publications, 2021-04-14) Sachitanand Singh; Renu Thakur; Diksha Kumari; Prachi Yadav; Bipina Gautam
    Background: Stereopsis is the ability to perceive depth in objects through binocular vision, where the brain interprets 2-dimensional retinal images as 3-dimensional shadows. It plays a crucial role in assessing and understanding the objects we see. Factors like sensory and motor fusion greatly influence the quality of stereoscopic vision. Myopia, a condition characterized by nearsightedness, can negatively impact stereopsis. Contrast sensitivity refers to the ability to discern sharp outlines and detect subtle differences in shading and patterns. It helps identify objects with unclear boundaries against their background. Purpose: This study aimed to compare Stereopsis, Contrast Sensitivity, and Near Point of Accommodation among individuals with different grades of Myopia and Emmetropia. Methods: A cross-sectional comparative study was conducted at Nandadeep Eye Hospital, Maharastra, involving staff and patients aged 15 to 30 years. Participants with strabismus, anisometropia, previous ocular surgery, ocular diseases, or systemic conditions were excluded. The assessments included objective and subjective refraction eye examinations, as well as measurements of stereopsis, contrast sensitivity, and near point of accommodation. Results: The results, based on 109 subjects, indicated no significant change in contrast sensitivity between emmetropes and myopes. However, there were significant differences in stereoacuity and NPA among different grades of myopes compared to emmetropes. Conclusions: the study suggests that optometrists and eye healthcare professionals should assess stereopsis and near point of accommodation in severely myopic patients even after optical correction, and consider vision therapy if necessary, as it is an effective treatment for accommodative and binocular vision anomalies.
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    Evaluation of Visual Function with Different Illumination for Diabetic Retinopathy Patients Post Ocular Management
    (Chitkara University Publications, 2022-10-10) Prema Chande; Renu Thakur; Lakshmi Prajapati; Aleena Saifi
    Background: India, the country with the most diabetics in the world with over 62 million diabetics. As increase in diabetes which is directly proportional to increase number of diabetic retinopathies in future. Aim: To evaluate the visual performance of diabetic retinopathy patients after ocular treatment with various LED lights. Methodology: This experimental investigation comprised 35 diabetic retinopathy patients treated with laser treatment or Anti-VEGF medication. On the basis of MN Read guidelines, participants with best-corrected visual acuity (BCVA) between 1.3 Log MAR and -0.5 Log MAR were included in the research. The comprehensive optometric assessment comprised a detailed medical history and best-corrected visual acuity (BCVA) for distance and near. The patient’s reading performance was next evaluated with MN Read acuity in three light circumstances, i.e., normal room illumination, an overhead projection of white LED and yellow LED, and constant 400 lux intensity. Results: The mean age of the participants was 58.6 ± 6.44 years. Data were analysed using one-way ANOVA for comparison of reading and functional performance under normal room illumination, white LED and yellow LED in diabetic retinopathy patients’ post-treatment. The scores derived from this analysis showed that there is no significant difference between reading performance, functional performance, and different illumination (p=0.05). Conclusion: Present study conclude that lighting had no influence on reading performance (Critical print size, reading speed, and reading acuity) and functional performance (Contrast sensitivity and colour vision) in diabetic retinopathy patients after therapy. Nevertheless, present study data indicate that white lighting increased reading speed and yellow illumination enhanced colour vision in diabetic retinopathy patients after therapy.
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    Necessity for Sports Vision Training in Institutions of Higher Learning: A Concise Evaluation
    (Chitkara University Publications, 2022-04-10) Aayushi Gupta; Renu Thakur
    Background: One of the most important senses in the human body is vision, which is used in many daily activities. Sports vision training is a rapidly expanding industry in the field of visual-skill development. Sports vision training had previously only been used on athletes to enhance their visual abilities and athletic performance. Still, given the pandemic’s effects and the rise in ocular ailments among college students, there is an urgent need to address their visual issues. Purpose: To explore the need of sport vision training in higher education institutes. Methods: This article examines the value of sports vision training, its necessity, and how it can be incorporated to meet the increased visual needs of college students. 170 articles were identified in this study, of which 38 were included. The search techniques included “Citation Searching” and “Using Keyword.” Google Scholar, Semantic Scholar and PubMed were used as the search engines. Both AND and OR were used as Boolean operators. Conclusions: This review also sheds a broad light on the visual problems among university students and why there is a high need to tackle them. This research concluded that to overcome the visual problems among university students, sports vision training should be opted for in higher education institutes.
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    Visumax Femtosecond Laser Impact on Myopic Residual Refractive Error
    (Chitkara University Publications, 2021-10-16) Kaushal Kishor Sahu; Sachitanand Singh; Renu Thakur
    Background: Compare the residual refractive power following “small incision lenticule extraction” (SMILE) surgical correction in myopic patients with moderate to severe myopia and myopic astigmatism. Aim: To study the pre op with post op residual refractive status comparison in low to high myopia and myopic astigmatism patients under gone ReLEx SMILE operation. Methods: Prospective comparative analysis with 65 eyes of 33 patients classified into three groups19: mild myopia -1.00 to -3.00 D, moderate myopia -3.25 to -6.00 D, and high myopia -6.25 to -10.00 D, comprising spherical and cylindrical using spherical equivalent (SE). Using the SMILE surgery, each patient were corrected for myopic refractive error. Retinoscope was conducted preoperatively and postoperatively one day and one month following surgery, respectively. Results: Pre op 1 day and 1 month are showing a significant and gradual decrease where low and high myopia are compared, which is statistically significant for both one day (0.007) and one month (0.001) post operatively, but low to moderate (0.282) and moderate to high (0.147) post operatively 1 day and 1 month it is not statistically significant. This indicates that high myopia has greater residual power than low and moderate myopia. Conclusion: This research concludes that residual power increases as myopia increases in severity. As the objective residual power after SMILE surgery is less than +/- 0.50D in approximately 75% – 80% of eyes, SMILE surgery is a suitable alternative for refractive surgery correction with less complications than other refractive surgery techniques.