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Research Article Open access CC BY 4.0

Establishing Normative Values for Amplitude of Accommodation and Accommodative Facility among University Students in Malawi

Masautso Chikuse, Thokozani Mzumara, Joseph Afonne

Ophthalmology Research: An International Journal · pp. 51–56 · Published 3 Dec 2022

10.9734/or/2022/v17i4372

Abstract

Aim: The study aimed to examine the distribution of Accommodative Facility (AF) and Amplitude of Accommodation (AA) and compare the findings with established guidelines. Place and Duration of Study: Mzuzu University, Malawi. Between May and July 2022. Methods: This cross-sectional study was conducted among students at Mzuzu university in Malawi. We recruited 77 students using a stratified random sampling technique. The participants' age ranged from 16 to 35 years of age. We measured AA using the push-up method while AF was measured using +/- 1.50 Diopters (D) flippers. Both techniques utilized black reading material on white background held at 40 centimeters (cm). Next, we measured the accommodation facility by counting the number of Cycles per Minute (c/m).  We utilized the Pearson correlation test and the One-way ANOVA where appropriate. The value of p< 0.05 was considered statistically           significant.   Results: The participants comprised 44 (57.1%) males and 33 (42.9%) females. Monocular AA was 10.04D (SD=2.71) and Binocular AA was 10.51 (3.641). The difference was statistically significant (p=0.04). While Monocular AF and Binocular AF were 9 c/m (SD= SD=1.84) and 8.96 (SD=1.539) respectively but the difference was non-significant (p=0.868). AF and AA were not significantly different between males and females. All the parameters decreased with age. The measured AA was significantly higher than using Hofstetter’s formula. Conclusion: The study provides a cut-off value for practitioners diagnosing Accommodation anomalies. However, indices in the study differ from the well-established guidelines hence practitioners should endeavor to perform the clinical assessment instead of relying on equations.

Push-up Hofstetter’s equation orthoptics amplitude of accommodation accommodative facility near vision

References (19)

  1. 1 Ocular and visual discomfort associated with smartphones, tablets and computers: what we do and do not know [DOI]
  2. 2 Accommodation lags are higher in myopia than in emmetropia: Measurement methods and metrics matter [DOI]
  3. 3 Changes in vergence and accommodation parameters after smartphone use in healthy adults [DOI]
  4. 4 Normative data for near point of convergence, accommodation, and phoria [DOI]
  5. 5 Changes in Accommodative Function of Young Adults in their Twenties following Smartphone Use [DOI]
  6. 6 Binocular and Accommodative Characteristics in a Normal Population [DOI]
  7. 7 Binocular vision anomalies and normative data (BAND) in Tamil Nadu: report 1 [DOI]
  8. 8 Normative values for clinical measures used to classify accommodative and vergence anomalies in a sample of high school children in South Africa [DOI]
  9. 9 Is reading rate in digital eyestrain influenced by binocular and accommodative anomalies? [DOI]
  10. 10 A comparison of accommodation and ocular discomfort change according to display size of smart devices [DOI]
  11. 11 Near Points of Convergence and Accommodation in a Population of University Students in Iran [DOI]
  12. 12 Comparison of the amplitude of accommodation determined subjectively and objectively in South African university students [DOI]
  13. 13 Comparing Different Methods of Measuring Accommodative Amplitude with Hofstetter’s Normative Values in a Ghanaian Population [DOI]
  14. 14 A review of normative data for parameters of functional non-strabismic binocular vision [DOI]
  15. 15 Amplitude of Accommodation and Add Power in An Adult Population of Tehran, Iran
  16. 16 The effect of smartphone usage on accommodation status
  17. 17 Assessment of amplitude of accommodation (AA) in Owerri Municipal Council, Southeast, Nigeria [DOI]
  18. 18 Effects of Ingested Fresh Palm Wine on Pupil Diameter and Amplitude of Accommodation in Young Adults [DOI]
  19. 19 Hofstetter’s equations overestimate the amplitude of accommodation in human eye: An analyses of 5433 subjects [DOI]

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