General modulation transfer function fitting equation for human eye with contact lens
In this research, a general equation was derived to represent the modulation transfer function (MTF) of the human eye with the presence of the contact lenses (CL) and during the vision with monochrome or multi-wavelength (polychromatic) light. This equation was used to fit the MTF’s curves for the...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Kuwait Journal of Science |
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| Online Access: | https://journalskuwait.org/kjs/index.php/KJS/article/view/10089 |
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| author | Faten Shakor Zainulabdeen Mohammed A. Hussein Ali H. AL-Hamdani |
| author_facet | Faten Shakor Zainulabdeen Mohammed A. Hussein Ali H. AL-Hamdani |
| author_sort | Faten Shakor Zainulabdeen |
| collection | DOAJ |
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In this research, a general equation was derived to represent the modulation transfer function (MTF) of the human eye with the presence of the contact lenses (CL) and during the vision with monochrome or multi-wavelength (polychromatic) light. This equation was used to fit the MTF’s curves for the eye with pupil diameters (EPD) (2.5, 4, 6, and 8 mm). The fitting equation accuracy was revealed by using the standard deviation (STD). The results indicated that the image MTF is sensitive to (EPD). Moreover, eye vision degrades as (EPD) increases due to the increased spherical and chromatic aberrations. The new equation consists of two exponential terms in addition to a correction polynomial function (H) to fit the EPD effect. The results showed that H function with power two is sufficient to give a good accuracy when the EPD is less than 4 mm, while H with power five is necessary when the EPD is larger or equal to 5 mm. Also, it is clear that the equation gives a high accuracy also in the case of vision with white light for the eye with the contact lens.
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| format | Article |
| id | doaj-art-b1abbe3fe7d44eda92fc2eeecc3152de |
| institution | Kabale University |
| issn | 2307-4108 2307-4116 |
| language | English |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Kuwait Journal of Science |
| spelling | doaj-art-b1abbe3fe7d44eda92fc2eeecc3152de2025-08-20T03:26:48ZengElsevierKuwait Journal of Science2307-41082307-41162021-08-0148410.48129/kjs.v48i4.10089General modulation transfer function fitting equation for human eye with contact lensFaten Shakor Zainulabdeen0Mohammed A. Hussein1Ali H. AL-Hamdani2Department of Physics, College of Education, Mustansiriyah University, Baghdad, IraqDepartment of Electrical Engineering, University of Technology, Baghdad, IraqLaser and Optoelectronics Engineering Department, University of Technology, Baghdad, Iraq In this research, a general equation was derived to represent the modulation transfer function (MTF) of the human eye with the presence of the contact lenses (CL) and during the vision with monochrome or multi-wavelength (polychromatic) light. This equation was used to fit the MTF’s curves for the eye with pupil diameters (EPD) (2.5, 4, 6, and 8 mm). The fitting equation accuracy was revealed by using the standard deviation (STD). The results indicated that the image MTF is sensitive to (EPD). Moreover, eye vision degrades as (EPD) increases due to the increased spherical and chromatic aberrations. The new equation consists of two exponential terms in addition to a correction polynomial function (H) to fit the EPD effect. The results showed that H function with power two is sufficient to give a good accuracy when the EPD is less than 4 mm, while H with power five is necessary when the EPD is larger or equal to 5 mm. Also, it is clear that the equation gives a high accuracy also in the case of vision with white light for the eye with the contact lens. https://journalskuwait.org/kjs/index.php/KJS/article/view/10089Contact lensesEye visionMTFFitting equationImage analysis. |
| spellingShingle | Faten Shakor Zainulabdeen Mohammed A. Hussein Ali H. AL-Hamdani General modulation transfer function fitting equation for human eye with contact lens Kuwait Journal of Science Contact lenses Eye vision MTF Fitting equation Image analysis. |
| title | General modulation transfer function fitting equation for human eye with contact lens |
| title_full | General modulation transfer function fitting equation for human eye with contact lens |
| title_fullStr | General modulation transfer function fitting equation for human eye with contact lens |
| title_full_unstemmed | General modulation transfer function fitting equation for human eye with contact lens |
| title_short | General modulation transfer function fitting equation for human eye with contact lens |
| title_sort | general modulation transfer function fitting equation for human eye with contact lens |
| topic | Contact lenses Eye vision MTF Fitting equation Image analysis. |
| url | https://journalskuwait.org/kjs/index.php/KJS/article/view/10089 |
| work_keys_str_mv | AT fatenshakorzainulabdeen generalmodulationtransferfunctionfittingequationforhumaneyewithcontactlens AT mohammedahussein generalmodulationtransferfunctionfittingequationforhumaneyewithcontactlens AT alihalhamdani generalmodulationtransferfunctionfittingequationforhumaneyewithcontactlens |