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Frequency of low vision patient and their causes presenting in Madinah Teaching Hospital, Pakistan


Advances in Ophthalmology & Visual System
Fatima Iqbal,1 Iqra Khalil,1 Hafiza Ayesha Khalil,2 Mariam Sadiq,3 Hafiza Azka Noor,3 Mawra Zahid4

Abstract

Aim: The aim of our study to determine the frequency of low vision patient and their causes presenting in Madinah Teaching Hospital.
 
Methods: 400 patients were screened in the duration of five month from JAN to MAY 2019.80 subjects were taken as a low vision patient according to WHO, whose visual acuity was less than 6/18 with correction. The main causes of low vision were observed high refractive errors, retinitis pigmentosa, cataract, glaucoma and diabetic retinopathy all patients presenting in ophthalmology department with either gender and age ranging from 10-80 years. Uncooperative and mentally retarded persons were excluded in our study. After complete history, we examined the all individual’s visual acuity with log-mar chart, color vision with ishihara and contrast sensitivity with Pelli-robson chart. Data was entered in to SPSS latest version and analyzed by descriptive analysis.
 
Results: The most common cause determined that is retinitis pigmentosa 17.5%, cataract 15.0%, glaucoma 13.8%, diabetic retinopathy 12.5% other causes are nystagmus 8.8%, high refractive error 6.3%, maculopathy 5.0%, retinal detachment 5.0%, vitreous hemorrhages 5.0%, albinism 3.8%, central retinal vein occlusion 2.5%, optic atrophy 1.3%, keratoconus 1.3%, age related macular degeneration 1.3% and stargardts disease 1.3% in those subjects, Functional vision component was also assessed. Patients with decrease visual acuity recorded were 33.8%, contrast sensitivity 17.5%, color vision 63.8%. 100% patient were suffering from distance vision problem.38.3% patient were near vision problem.50%patient were night vision problem.93.8% patient were day vision problem.78.8% patient were glare problem and 55.0% patient were mobility problem.
 
Conclusion: Retinitis pigmentosa was the most serious cause of low vision. We observed that in functional vision, the color vision was most affected. There is no proper low vision setup in Faisalabad so that we want to make a proper low vision setup for those patients who were presented in such a big quantity in the duration of four months.

Keywords

decrease vision, functional vision, impairment, low vision

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