Analysis and calculations of decentration amount and prism in eyeglass lenses

Hülya Kuru Mutlu

doi:10.17776/csj.862553

EN

Analysis and calculations of decentration amount and prism in eyeglass lenses

Abstract

The error of refraction is a very common eye disorder. Untreated vision problems put a lot of burden on the global economy annually. One of the most important parameters in the correct treatment of visual defects is the correct assembly of the focal point of the glass. The study was carried out to reveal the decentration differences and the analysis of prism formation after glass assembly according to the prescriptions of 150 customers who came to an optical shop in Eskisehir on Saturdays, 2015-2016. A digital lensmeter was used for the measurement of glasses, and a digital and photographic pupilmeter was used to measure pupillary distances. Chi-square test was used in the frequency study, and differences in glass numbers were used the Marginal Homogeneity Test was used in the analysis of the accuracy of the data. Glass assemblies without decentration were achieved at a rate of 94.66% in distance glasses and 93.33 % in near glasses. When the errors made in applied physics are analyzed, the amount of decentration in the assembly of the glasses that are frequently used in daily life draws attention. In this case, it caused unwanted prism formation.

Keywords

Decentration amount, prismatic effect, Chi-square test, Marginal homogeneity test, spectacle glass errors

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Details

Primary Language

English

Subjects

Classical Physics (Other)

Journal Section

Research Article

Authors

Hülya Kuru Mutlu ^*
0000-0002-6955-5851
Türkiye

Publication Date

June 30, 2021

Submission Date

January 16, 2021

Acceptance Date

March 12, 2021

Published in Issue

Year 2021 Volume: 42 Number: 2

DOI

https://doi.org/10.17776/csj.862553

IZ

https://izlik.org/JA79GB22KS

APA

Kuru Mutlu, H. (2021). Analysis and calculations of decentration amount and prism in eyeglass lenses. Cumhuriyet Science Journal, 42(2), 364-371. https://doi.org/10.17776/csj.862553

AMA

1.Kuru Mutlu H. Analysis and calculations of decentration amount and prism in eyeglass lenses. CSJ. 2021;42(2):364-371. doi:10.17776/csj.862553

Chicago

Kuru Mutlu, Hülya. 2021. “Analysis and Calculations of Decentration Amount and Prism in Eyeglass Lenses”. Cumhuriyet Science Journal 42 (2): 364-71. https://doi.org/10.17776/csj.862553.

EndNote

Kuru Mutlu H (June 1, 2021) Analysis and calculations of decentration amount and prism in eyeglass lenses. Cumhuriyet Science Journal 42 2 364–371.

IEEE

[1]H. Kuru Mutlu, “Analysis and calculations of decentration amount and prism in eyeglass lenses”, CSJ, vol. 42, no. 2, pp. 364–371, June 2021, doi: 10.17776/csj.862553.

ISNAD

Kuru Mutlu, Hülya. “Analysis and Calculations of Decentration Amount and Prism in Eyeglass Lenses”. Cumhuriyet Science Journal 42/2 (June 1, 2021): 364-371. https://doi.org/10.17776/csj.862553.

JAMA

1.Kuru Mutlu H. Analysis and calculations of decentration amount and prism in eyeglass lenses. CSJ. 2021;42:364–371.

MLA

Kuru Mutlu, Hülya. “Analysis and Calculations of Decentration Amount and Prism in Eyeglass Lenses”. Cumhuriyet Science Journal, vol. 42, no. 2, June 2021, pp. 364-71, doi:10.17776/csj.862553.

Vancouver

1.Hülya Kuru Mutlu. Analysis and calculations of decentration amount and prism in eyeglass lenses. CSJ. 2021 Jun. 1;42(2):364-71. doi:10.17776/csj.862553

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