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Tanhaye Shamsabady Z, Ehsaei A, Mahjoob M. Effect of Computer Tasks in Straight Gaze on Corneal Topographic Indices. JOVR [Internet]. 2024Jun.21 [cited 2024Jun.30];19(2):144–151. Available from: https://knepublishing.com/index.php/JOVR/article/view/12737
https://doi.org/10.18502/jovr.v19i2.12737
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authors
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Zeinab Tanhaye Shamsabady
Zeinab Tanhaye Shamsabady
Department of Optometry, Mashhad University of Medical Sciences, Mashhad, Iran
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Asieh Ehsaei
Asieh Ehsaei
Refractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Monireh Mahjoob
Monireh Mahjoob
Health Promotion Research Center, Department of Optometry, Rehabilitation Sciences Faculty, Zahedan University of Medical Sciences, Zahedan, Iran
Published Date
- Jun 21, 2024
Effect of Computer Tasks in Straight Gaze on Corneal Topographic Indices
Abstract
Purpose: To investigate the effect of the near visual task of movie-watching in the straight gaze position on corneal topographic parameters.
Methods: Thirty myopic young adults with an average age of 25.10 ± 4.13 years were recruited for the study. The designed near visual task consisted of watching a movie in the straight gaze position at a distance of 40 cm for 30 minutes. Corneal topography was performed using Oculus Keratograph 4 (OCULUS, Wetzlar, Germany) before and immediately after watching the movie, as well as at 10, 20, and 30 minutes intervals after completing this near visual task. Zernike coefficients, asphericity indices, refractive parameters, and diagnostic indices of keratoconus were recorded for statistical analysis.
Results: Movie-watching at a close distance solely using the straight gaze position had no effect on Zernike coefficients (P > 0.130). Also, watching the movie had no effect on other corneal topography parameters including irregularities (P = 0.208), spherical eccentricity (P = 0.270), maximum decentration (P = 0.553), axis of maximum decentration (P = 0.186), peripheral astigmatism (P = 0.179), and average asphericity of the quadrants at 10 to 30º (P > 0.163).
Conclusion: The results of the present study showed that watching movies in the straight gaze position had no effect on corneal topographic parameters and did not cause errors in corneal topographic measurements.
Keywords:
Cornea, Corneal Aberration, Corneal Tomography, Corneal Topography, Pentacam
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16. Priluck AZ, Hoie AB, High RR, Gulati V, Ghate DA. Effect of near work on intraocular pressure in emmetropes. J Ophthalmol 2020;2020. https://doi.org/10.1155/2020/1352434
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25. Chen A, Othman R, Kim D. Comparison of the corneal topography changes as a result of near task between myopes and emmetropes. J Korean Ophthalmic Opt Soc 2003;8:11–15.
26. Buehren T, Collins MJ, Carney L. Corneal aberrations and reading. Optom Vis Sci 2003;80:159–166.
27. Collins MJ, Kloevekorn-Norgall K, Buehren T, Voetz SC, Lingelbach B. Regression of lid-induced corneal topography changes after reading. Optom Vis Sci 2005;82:843–849.
28. Ford JG, Davis RM, Reed JW, Weaver RG, Craven TE, Tyler ME. Bilateral monocular diplopia associated with lid position during near work. Cornea 1997;16:525–530.
29. Bowman KJ, Smith G, Carney LG. Corneal topography and monocular diplopia following near work. Am J Optom Physiol Opt 1978;55:818–823.
30. Yasuda A, Yamaguchi T. Steepening of corneal curvature with contraction of the ciliary muscle. J Cataract Refract Surg 2005;31:1177–1181.
31. Hashemi H, Firoozabadi MR, Mehravaran S, Gorouhi F. Corneal stability after discontinued soft contact lens wear. Cont Lens Anterior Eye 2008;31:122–125.
32. Ortiz-Toquero S, Rodriguez G, de Juan V, Martin R. Repeatability of placido-based corneal topography in keratoconus. Optom Vis Sci 2014;91:1467–1473.
33. Read SA, Collins MJ, Carney LG. The diurnal variation of corneal topography and aberrations. Cornea 2005;24:678–687.
34. Buehren T, Collins MJ, Carney LG. Near work induced wavefront aberrations in myopia. Vision Res 2005;45:1297–312.
35. Vasudevan B, Ciuffreda KJ, Wang B. Nearwork-induced changes in topography, aberrations, and thickness of the human cornea after interrupted reading. Cornea 2007;26:917–923.
36. Collins MJ, Buehren T, Bece A, Voetz SC. Corneal optics after reading, microscopy and computer work. Acta Ophthalmol Scand 2006;84:216–224.
37. Gomes JR, Franco SM. Near vision tasks and optical quality of the eye. J Ophthalmic Vis Res 2021;16:620–630.
38. Prabhasawat P, Pinitpuwadol W, Angsriprasert D, Chonpimai P, Saiman M. Tear film change and ocular symptoms after reading printed book and electronic book: A crossover study. Jpn J Ophthalmol 2019;63:137– 144.
39. Karakus S, Agrawal D, Hindman HB, Henrich C, Ramulu PY, Akpek EK. Effects of prolonged reading on dry eye. Ophthalmology 2018;125:1500–1505.
40. Montés-Micó R, Cáliz A, Alió JL. Wavefront analysis of higher order aberrations in dry eye patients. J Refract Surg 2004;20:243–247.
41. Pierścionek BK, Popiołek-Masajada A, Kasprzak H. Corneal shape change during accommodation. Eye 2001;15:766–769.
42. Read SA, Collins MJ, Carney LG. A review of astigmatism and its possible genesis. Clin Exp Optom 2007;90:5–19.
43. Davis WR, Raasch TW, Mitchell GL, Mutti DO, Zadnik K. Corneal asphericity and apical curvature in children: a cross-sectional and longitudinal evaluation. Invest Ophthalmol Vis Sci 2005;46:1899–1906.
2. Ghosh A, Collins M, Davis B, Read S, Yi F, Chatterjee P. Changes in ocular biometrics and refraction during near work in downward gaze over time. Invest Ophthalmol Vis Sci 2013;54:4552.
3. Ghosh A, Collins MJ, Read SA, Davis BA, Iskander DR. The influence of downward gaze and accommodation on ocular aberrations over time. J Vis 2011;11:17.
4. Bhatoa NS, Hau S, Ehrlich DP. A comparison of a topography-based rigid gas permeable contact lens design with a conventionally fitted lens in patients with keratoconus. Cont Lens Anterior Eye 2010;33:128–135.
5. Alessio G, Boscia F, La Tegola MG, Sborgia C. Topographydriven excimer laser for the retreatment of decentralized myopic photorefractive keratectomy. Ophthalmology 2001;108:1695–1703.
6. Levy D, Hutchings H, Rouland JF, Guell J, Burillon C, Arné JL, et al. Videokeratographic anomalies in familial keratoconus. Ophthalmology 2004;111:867–874.
7. Ghemame M, Charpentier P, Mouriaux F. Corneal topography in clinical practice. J Fr Ophtalmol 2019;42:e439–51.
8. Cavas-Martínez F, De la Cruz Sánchez E, Nieto Martínez J, Fernández Cañavate FJ, Fernández-Pacheco DG. Corneal topography in keratoconus: State of the art. Eye Vis 2016;3:5.
9. Faria-Ribeiro M, Belsue RN, López-Gil N, González- Méijome JM. Morphology, topography, and optics of the orthokeratology cornea. J Biomed Opt 2016;21:75011.
10. Scholz K, Messner A, Eppig T, Bruenner H, Langenbucher A. Topography-based assessment of anterior corneal curvature and asphericity as a function of age, sex, and refractive status. J Cataract Refract Surg 2009;35:1046– 1054.
11. Maseedupally V, Gifford P, Swarbrick H. Variation in normal corneal shape and the influence of eyelid morphometry. Optom Vis Sci 2015;92:286–300.
12. Read SA, Collins MJ, Carney LG, Iskander DR. The morphology of the palpebral fissure in different directions of vertical gaze. Optom Vis Sci 2006;83:715–722.
13. Hughes RP, Read SA, Collins MJ, Vincent SJ. Changes in ocular biometry during short-term accommodation in children. Ophthalmic Physiol Opt 2020;40:584–594.
14. Niyazmand H, Ostadi Moghaddam H, Sedaghat MR, Ahmadi Hosseini SM, Abolbashari F. Anterior segment changes following short-term reading and its correlation with corneal biomechanical characteristics. Ophthalmic Physiol Opt 2013;33:592–596.
15. Ghosh A, Collins MJ, Read SA, Davis BA, Chatterjee P. Axial elongation associated with biomechanical factors during near work. Optom Vis Sci 2014;91:322–329.
16. Priluck AZ, Hoie AB, High RR, Gulati V, Ghate DA. Effect of near work on intraocular pressure in emmetropes. J Ophthalmol 2020;2020. https://doi.org/10.1155/2020/1352434
17. Read SA, Collins MJ, Becker H, Cutting J, Ross D, Savill AK, et al. Changes in intraocular pressure and ocular pulse amplitude with accommodation. Br J Ophthalmol 2010;94:332–335.
18. Jenssen F, Krohn J. Effects of static accommodation versus repeated accommodation on intraocular pressure. J Glaucoma 2012;21:45–48.
19. Croft MA, Nork TM, McDonald JP, Katz A, Lütjen-Drecoll E, Kaufman PL. Accommodative movements of the vitreous membrane, choroid, and sclera in young and presbyopic human and nonhuman primate eyes. Invest Ophthalmol Vis Sci 2013;54:5049–5058.
20. Mallen EA, Kashyap P, Hampson KM. Transient axial length change during the accommodation response in young adults. Invest Ophthalmol Vis Sci 2006;47:1251–1254.
21. Consejo A, Radhakrishnan H, Iskander DR. Scleral changes with accommodation. Ophthalmic Physiol Opt 2017;37:263–274.
22. Collins MJ, Buehren T, Trevor T, Statham M, Hansen J, Cavanagh DA. Factors influencing lid pressure on the cornea. Eye Contact Lens 2006;32:168–173.
23. Shaw AJ, Collins MJ, Davis BA, Carney LG. Corneal refractive changes due to short-term eyelid pressure in downward gaze. J Cataract Refract Surg 2008;34:1546–1553.
24. Shaw AJ, Collins MJ, Davis BA, Carney LG. Eyelid pressure: Inferences from corneal topographic changes. Cornea 2009;28:181–188.
25. Chen A, Othman R, Kim D. Comparison of the corneal topography changes as a result of near task between myopes and emmetropes. J Korean Ophthalmic Opt Soc 2003;8:11–15.
26. Buehren T, Collins MJ, Carney L. Corneal aberrations and reading. Optom Vis Sci 2003;80:159–166.
27. Collins MJ, Kloevekorn-Norgall K, Buehren T, Voetz SC, Lingelbach B. Regression of lid-induced corneal topography changes after reading. Optom Vis Sci 2005;82:843–849.
28. Ford JG, Davis RM, Reed JW, Weaver RG, Craven TE, Tyler ME. Bilateral monocular diplopia associated with lid position during near work. Cornea 1997;16:525–530.
29. Bowman KJ, Smith G, Carney LG. Corneal topography and monocular diplopia following near work. Am J Optom Physiol Opt 1978;55:818–823.
30. Yasuda A, Yamaguchi T. Steepening of corneal curvature with contraction of the ciliary muscle. J Cataract Refract Surg 2005;31:1177–1181.
31. Hashemi H, Firoozabadi MR, Mehravaran S, Gorouhi F. Corneal stability after discontinued soft contact lens wear. Cont Lens Anterior Eye 2008;31:122–125.
32. Ortiz-Toquero S, Rodriguez G, de Juan V, Martin R. Repeatability of placido-based corneal topography in keratoconus. Optom Vis Sci 2014;91:1467–1473.
33. Read SA, Collins MJ, Carney LG. The diurnal variation of corneal topography and aberrations. Cornea 2005;24:678–687.
34. Buehren T, Collins MJ, Carney LG. Near work induced wavefront aberrations in myopia. Vision Res 2005;45:1297–312.
35. Vasudevan B, Ciuffreda KJ, Wang B. Nearwork-induced changes in topography, aberrations, and thickness of the human cornea after interrupted reading. Cornea 2007;26:917–923.
36. Collins MJ, Buehren T, Bece A, Voetz SC. Corneal optics after reading, microscopy and computer work. Acta Ophthalmol Scand 2006;84:216–224.
37. Gomes JR, Franco SM. Near vision tasks and optical quality of the eye. J Ophthalmic Vis Res 2021;16:620–630.
38. Prabhasawat P, Pinitpuwadol W, Angsriprasert D, Chonpimai P, Saiman M. Tear film change and ocular symptoms after reading printed book and electronic book: A crossover study. Jpn J Ophthalmol 2019;63:137– 144.
39. Karakus S, Agrawal D, Hindman HB, Henrich C, Ramulu PY, Akpek EK. Effects of prolonged reading on dry eye. Ophthalmology 2018;125:1500–1505.
40. Montés-Micó R, Cáliz A, Alió JL. Wavefront analysis of higher order aberrations in dry eye patients. J Refract Surg 2004;20:243–247.
41. Pierścionek BK, Popiołek-Masajada A, Kasprzak H. Corneal shape change during accommodation. Eye 2001;15:766–769.
42. Read SA, Collins MJ, Carney LG. A review of astigmatism and its possible genesis. Clin Exp Optom 2007;90:5–19.
43. Davis WR, Raasch TW, Mitchell GL, Mutti DO, Zadnik K. Corneal asphericity and apical curvature in children: a cross-sectional and longitudinal evaluation. Invest Ophthalmol Vis Sci 2005;46:1899–1906.