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Pakravan M, Samaeili A, Esfandiari H, Hassanpour K, Hooshmandi S, Yazdani S, Sharifipour F, Doozandeh A, Einollahi B, Pakravan P, Shahriari MH, Kheiri B. Influence of Near Vision Tasks on Intraocular Pressure in Normal Subjects and Glaucoma Patients. JOVR [Internet]. 2022Nov.24 [cited 2024Jul.26];17(4):497–504. Available from: https://knepublishing.com/index.php/JOVR/article/view/12350

https://doi.org/10.18502/jovr.v17i4.12350

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authors

  • Mohammad Pakravan

    Mohammad Pakravan

    Glaucoma and Neuro-Ophthalmologist, Jones Eye Institute, University of Arkansas for Medical Sciences, AR, USA
  • Azadeh Samaeili

    Azadeh Samaeili

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Hamed Esfandiari

    Hamed Esfandiari

    Department of Ophthalmology, Olmsted Medical Center, Rochester, MN, USA
  • Kiana Hassanpour

    Kiana Hassanpour

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Sadid Hooshmandi

    Sadid Hooshmandi

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Shahin Yazdani

    Shahin Yazdani

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Farideh Sharifipour

    Farideh Sharifipour

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Azadeh Doozandeh

    Azadeh Doozandeh

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Bahram Einollahi

    Bahram Einollahi

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Parastou Pakravan

    Parastou Pakravan

    Miller School of Miami, University of Miami, Miami, Florida
  • Mohammad Hasan Shahriari

    Mohammad Hasan Shahriari

    Department of Health Information Technology and Management, School of Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  • Bahareh Kheiri

    Bahareh Kheiri

    Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Published Date

  • Nov 24, 2022
This journal is publishing all the articles under Creative Commons Attribution License CC BY 4.0.

Influence of Near Vision Tasks on Intraocular Pressure in Normal Subjects and Glaucoma Patients

Journal of Ophthalmic and Vision Research (JOVR) / Oct–Dec 2022, Volume 17, Issue 4 / Pages 497–504

Abstract

Purpose: To investigate the effect of static accommodative tasks on intraocular pressure (IOP) of glaucomatous and normal eyes.


Methods: Four groups of subjects categorized as primary open-angle glaucoma (POAG), primary angle-closure suspects (PACS), normal age-matched controls, and normal young adults (NYA; age <40 years) were enrolled. The baseline IOPs were measured after the subjects were looking at a distant target for 15 min. Static accommodation was obtained by execution of near vision tasks (reading at 33 cm in daylight [300 lux] for 60 min). IOPs were measured at 15, 30, 45, and 60 min intervals while accommodating and then measured again after 15 min of relaxing accommodation while looking at a distant target.


Results: One-hundred and eighteen eyes of 98 subjects were recruited. The study groups consisted of the following categories: 25 POAG (46 eyes), 24 PACS (47 eyes), 25 matched controls (50 eyes), and 24 NYA (48 eyes). Within all groups, the mean IOP decreased throughout the accommodation period at all time points. Maximum IOP reduction after accommodation was detected at the 30-min time among the POAG subjects, at the 45-min time in the PACS and matched control groups, and at 15 min after the relaxation of accommodation in the NYA group. IOP reduction levels showed no statistically significant difference among POAG, PACS, and the normal matched groups in their response to accommodation. However, NYA had significantly lower IOP and greater IOP reduction after the resting period (relaxation of accommodation).


Conclusion: Static accommodative tasks can significantly reduce IOP in normal, POAG, and PACS individuals. Encouraging glaucoma patients to practice periodical near vision tasks could be viewed as an adjunctive measure for glaucoma management.

Keywords:

Accommodation, Accommodative Tasks, Intraocular Pressure, Primary Openangle Glaucoma

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