Сенсорные системы, 2020, T. 34, № 2, стр. 100-106

Contact lens with implanted occluder as a tool for assessment of far peripheral vision in natural viewing conditions

E. N. Iomdina 1*, O. M. Selina 1, G. I. Rozhkova 2, A. V. Belokopytov 2, E. I. Ershov 2

1 Helmholtz National Medical Research Center of Eye Diseases
105062 Moscow, Sadovaya-Chernogryazskaya, 14/19, Russia

2 Institute for Information Transmission Problems of the Russian Academy of Sciences (Kharkevich Institute)
127051 Moscow, B. Karetny per., 19, Russia

* E-mail: iomdina@gmail.com

Поступила в редакцию 17.12.2019
После доработки 09.01.2020
Принята к публикации 23.01.2020


The purpose of this research was to assess the perspectives of using contact lens with implanted occluder (CL + O) for far peripheral vision investigation. Contact lens with sufficiently large artificial opaqueness at the center seems to be a proper tool for separation of peripheral visual mechanisms since it prevents any possibility of test stimulus foveating. Earlier studies with similar contact lenses were aimed to mimic vision loss in the case of macular degeneration by means of creating artificial scotoma with relatively small occluders which only “switched off” foveal area and near periphery from visual perception. The task of our study was to separate far peripheral vision using significantly larger occluders in order to provide a possibility to investigate peripheral visual capabilities in natural visual conditions without gaze fixation and division of attention. The calculations based on geometrical optics analysis taking into account the quantitative data available in literature on the human eye structure were used for assessment of the blind zone size created with a given occluder in various experimental conditions in view of proper CL + O choice for experimental sessions. The experimental part of the work included measurements of the blind zone size and position in the visual field varying the occluder diameter and ambient illumination (to change the pupil size). It has been concluded that CL + O is promising for peripheral vision investigations, however, application of CL + O requires thorough control of experimental conditions because the occluded retinal area essentially depends on the individual eye optics and illumination of the experimental scene.

Ключевые слова: периферическое зрение, зрение без фовеа, контактная линза, имплантированный окклюдер, расчет слепой зоны

DOI: 10.31857/S0235009220020043

Список литературы

  1. Almutleb E.S., Bradley A., Jedlicka J. Hassan S.E. Simulation of central scotoma using contact lenses with an opaque centre. Ophthalmic Physiol Opt. 2018. V. 38 (1). P. 76–87. https://doi.org/10.1111/opo.12422

  2. Butt T., Crossland M.D., West P., Orr S.W., Rubin G.S. Simulation contact lenses for AMD health state utility values in NICE appraisals: a different reality. Br. J. Ophthalmol. 2015. V. 99. P. 540–544.

  3. Chateau N., De Brabander J., Bouchard F., Molenaar H. Infrared pupillometry in presbyopes fitted with soft contact lenses. Optom Vis Sci. 1996. V. 73 (12). P. 733–741. https://doi.org/10.1097/00006324-199612000-00003

  4. Czoski-Murray C., Carlton J., Brazier J., Young T., Papo N.L., Kang H.K. Valuing condition-specific health states using simulation contact lenses. Value Health. 2009. V. 12. P. 793–799.

  5. Feng M.T., Belin M.W., Ambrósio R.J., Grewal S.P., Yan W., Shaheen M.S. Anterior chamber depth in normal subjects by rotating scheimpflug imaging. Saudi J. Ophthalmol. 2011. V. 25 (3). P. 255–259. https://doi.org/10.1016/j.sjopt.2011.04.005

  6. Jordan T.R., McGowan V.A., Paterson K.B. Reading with a filtered fovea: The influence of visual quality at the point of fixation during reading. Psychon. Bull. Rev. 2012. V. 19. P. 1078–1084. https://doi.org/10.3758/s13423-012-0307-x

  7. Katz M., Kruger P.B. The human eye as an optical system Duane’s Ophthalmology on CDROM. 2006. Chapter 33.

  8. Klee S., Link D., Sinzinger S., Haueisen J. Scotoma simulation in healthy subjects. Optometry and vision Science. 2018. V. 95(12). P. 1120–1128.

  9. Lingnau A. Seeing without a fovea? Eye movements in reading and visual search with an artificial central scotoma. Ph.D. dissertation (Technischen Universität Carolo-Wilhelmina zu Braunschweig, 2005), https://d-nb.info/974049999/34. Accessed: 2019-10-20.

  10. Marmor D.J., Marmor M.F. Simulating vision with and without macular disease. Arch Ophthalmol. 2010. V. 128. P. 117–125. https://doi.org/10.1001/archophthalmol

  11. Mashige K. A review of corneal diameter, curvature and thickness values and influencing factors. African Vision and Eye Health. 2013. V. 72 (4). P. 185–194. https://doi.org/10.4102/aveh.v72i4.58

  12. Nau A.A. Contact Lens model to produce reversible visual field loss in healthy subjects. Optometry. 2012. V. 83. P. 279–284.

  13. Rozhkova G.I., Selina O.M., Nikolaev P.P., Belokopytov A.V. A new approach to investigate peripheral vision: Contact lens with opaque central part. 41st European Conference on Visual Perception 2018. Trieste, Italy. 26–30 of August. Perception. 2019a. V. 48. Suppl. P. 131.

  14. Rozhkova G.I., Iomdina E.N., Selina O.M., Belokopytov A.V., Nikolayev P.P. Vklad krainei periferii setchatki v konstantnost tsvetovospriyatiya: svidetelstva, poluchennye blagodarya kontaktnym linzam s implantirovannymi okklyuderami [Contribution of the marginal peripheral retina to color constancy: evidence obtained due to contact lens with implanted occluder]. Sensornye sistemy [Sensory systems]. 2019b. V. 33(2). P. 113–123. (in Russian). https://doi.org/10.1134/S0235009219020082

  15. Sivak B., Sivak J.G., MacKenzie C.L. Contact lens design for lateralizing visual input. Neuropsychologia. 1985. V. 23. P. 801–883.

  16. Sivak B., MacKenzie C.L. Integration of visual information and motor output in reaching and grasping: the contributions of peripheral and central vision. Neuropsychologia. 1990. V. 28. P. 1095–1116.

  17. Walonker A.F., Diddie K.R. Simulating decreased visual acuity with a contact lens system. Am. J. of Ophthalm. 1981. V. 92 (6). P. 863–864. https://doi.org/10.1016/S0002-9394(14)75645-4

  18. Yarbus A.L. Eye Movements and Vision. Plenum Press. New York, 1967.

  19. Yarbus A.L., Rozhkova G.I. The peculiarities of perceiving visual objects at the periphery of the visual field. Sensory systems. Nauka. 1977. P. 64–73.

  20. Young G., Allsopp G., Inglis A., Watson S. Comparative performance of disposable soft contact lenses. Cont Lens Anterior Eye. 1997. V. 20 (1). P. 13–21. https://doi.org/10.1016/s1367-0484(97)80031-8

  21. Zhang Y.Y., Jiang W.J., Teng Z.E., Wu J.F., Hu Y.Y., Lu T.L.,Wu H., Sun W., Wang X.R., Bi H.S., Jonas J.B. Corneal curvature radius and associated factors in chinese children: the shandong children eye study. PLOS ONE. 2015. V. 10 (2). https://doi.org/10.1371/journal.pone.0117481

Дополнительные материалы отсутствуют.