Muhammad Asif Memon¹*, Samreen Baloch², Fazila Shah², Ahmed Hafeez², Ayaz Ali², Kiran², Mehak Nazir³, Muhammad Atif Nisar⁴ and Beenish Atif⁵

¹Isra School of Optometry, Al-Ibrahim Eye Hospital, Karachi, Sindh, Pakistan
²Peadiatric Department, Al-Ibrahim Eye Hospital, Karachi
³Isra School of Optometry, Al-Ibrahim Eye Hospital, Karachi
⁴Sina Health Clinics, Karachi
⁵Afiya Clinics, DHA, Karachi

*Corresponding Author: Muhammad Asif Memon, sra School of Optometry, Al-Ibrahim Eye Hospital, Karachi, Sindh, Pakistan.

Received: June 13, 2022; Published: June 28, 2022

Abstract

Purpose: To determine effect of refractive error and color vision on Stereopsis and evaluate the frequency in children.

Methods: The hospital based; descriptive, cross-sectional study was conducted at paediatric department from July to December 2020.

Results: 29 (51.8%) out of 56 found myopic, 12 (21.4%) hypermetropia and 15 (26.8) astigmatism in right eye and 30 (53.6%) found myopic, 13 (23.2%) hypermetropia and 13 (23.2%) astigmatism in left eye.

21 had normal or 55 sec of arc, 6 have mild 170 sec of arc and only 2 patients had weak 340 sec of arc.12 hypermetropia patient 10 have normal or 55 sec of arc and 2 have mild 170 sec of arc.15 astigmatism patient 6 had normal or 55 sec of arc of stereopsis, 6 have mild 170 sec of arc of stereopsis and 3 patient had weak 340 sec of arc Stereopsis without refractive correction. With refractive correction on Frisby test, 56 (100%) patients had normal or 55 second of arc stereopsis. Out of 56 of patients, 52 (92.9%) patients had normal color vision (Trichromats) and only 4 (7.1%) patients found with blue-yellow color vision defect (Tritan). Tritan color vision anomaly found in 3 females out of 20 and out of 32 male 1 had found with tritan color vision anomaly.

Conclusion: Improvement of stereopsis after correction and no effect of color vision on stereopsis. Tritan (Blue) color vision anomaly was higher in female as compare to male.

Keywords: Stereopsis; Color Vision; Anomaly

References

1. Motulsky AG. “Normal and abnormal color-vision genes”. American Journal of Human Genetics3 (1988): 405-407.
2. Hashemi H., et al. “The prevalence of color vision deficiency in the northeast of Iran”. Journal of Current Ophthalmology1 (2017): 80-85.
3. Nityananda V and Read “Stereopsis in animals: evolution, function and mechanisms”. The Journal of Experimental Biology 220.14 (2017): 2502-2512.

Citation

Citation: Muhammad Asif Memon., et al. “Stereopsis and Color Vision in Children of Al-Ibrahim Eye Hospital, Malir, Karachi".Acta Scientific Ophthalmology 5.7 (2022): 56-60.

Copyright

Copyright: © 2022 Muhammad Asif Memon., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.