Acta Scientific Ophthalmology (ISSN: 2582-3191)

Research Article Volume 5 Issue 7

Stereopsis and Color Vision in Children of Al-Ibrahim Eye Hospital, Malir, Karachi

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


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


  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: 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: © 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.


Acceptance rate35%
Acceptance to publication20-30 days
ISI- IF1.042
JCR- IF0.24

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