Indian Journal of Public Health Research & Development

Renu Thakur ¹, Sangeeta Pant ², Jaikishan Jaya Kumar ³

Affiliations
1 Senior Optometry Faculty; Sankara Academy of Vision, Sankara Eye Hospital, Ludhiana, Punjab, IN
2 Dean, Chitkara College of Education, Chitkara University, Punjab, IN
3 Chief Operations Officer/Senior Project Advisor, Center for Computational Brain Research, Indian Institute of Technology Madras Chennai, Tamil Nadu, IN

Abstract

Context: Learning to read is a complex cognitive perspective, it’s a child ability to decode, analyze and construct linguistic meaning from a the written print; reading include identification of alphabets, bond of spellings and assessing them in memory i.e. word reading, phonic awareness and knowledge of alphabets are the base of learning to read[15];Total 60 students were enrolled in the study, 30 deaf and 30 age-matched hearing, all the students were from age group of 8.5 to 11.5 years (50% male and 50% female in each group); extensive eye examination was performed prior to the study, all the participants were free from Ocular and systemic pathology. Two different tests were performed for reading skill; Reading comprehension was evaluated with ADR I Net Dynamic reader, and English reading tool was used, the tool was developed and used by Pratham-ASER Centre to evaluate reading speed; both the test showed statistically significant difference; (P-Value of <0.001) were deaf students had scored less marks in reading comprehension test and they were slow in reading speed also; deaf were taking more time to read in comparison of hearing students (P-Value of <0.001).

Keywords

Reading Speed, Reading Comprehension.

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Namrata Pandey ¹, Renu Thakur ²

Affiliations
1 Chitkara School of Health Science, Chitkara University, Punjab, IN
2 Sankara Academy of Vision, Sankara Eye Hospital, Ludhiana, Punjab, IN

Abstract

Anisometropia is dissimilarity between the power between the two eyes that occurs in one or both principal meridian.^[1] This becomes clinically significant when its magnitude reaches approximately 1D in either or both of the principal meridians.^[3] When two eyes forms two non uniform images due to differences in power of both eye which leads to retinal rivalry. Suppression is an active inhibitory mechanism from the brain to reduce retinal rivalry.^[18] Total 50 subjects of age groups 5-19 yrs were undergone both objective and subjective refraction with anterior and posterior segment evaluation. After that worth four dot test was done on each patient from near to far. (40cm- 4m). For evaluation Log Marchart, Heine retinoscope, worth four- dot torch,slit-lamp was used. Analysis of subjects showed that suppression is lesser in myopic group than hyperopic. The degree of suppression in anisometropia, their mean and SD in NA(0.57±0.62) and AA(1.2±1.18) respectively (P<0.01) be statistically significant .The mean and SD of angle of suppression in hyperopia (1±0.9), myopia (1.02±1.25) degree respectively(p>0.001) was statistically non significant. The mean and SD of differences in refractive error (DRE) in hyperopia (3.1±1.23),myopia (-2.72±1.03) and angle of suppression in each groups hyperopic(0.99±.91) and myopic groups (1.04±1.24) respectively (p<0.001) was statistically significant. However suppression is found in Amblyopia cases with greater visual acuity than refractive error. Difference in refractive power show Statistical significance in suppression as their degree of anisometropia increases.

Keywords

Non amblyopia (NA), amblyopia (AA), Difference in refractive power of both eye (DRE), refractive error (RE), angle of suppression (AOS)

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