Are traditional methods of balancing accommodation still useful in the modern optometry office? A comparison of methods

• Autorzy: Pempera P , Feltzke M , Miskowiak B

Identyfikatory

DOI

10.5277/oa140107

• Języki publikacji: EN

Abstrakty

EN

The goal of this research is to compare the usefulness of both Turville infinity balance (TIB) and Humphriss immediate contrast (HIC) as methods of balancing accommodation. Statistical analysis of test results and practical application of both tests were taken into account. A group of 50 people between 18 to 72 years of age were examined. Balancing the state of accommodation of each eye by the two aforementioned methods was performed after refractive examination and full correction of refractive errors. The examination was carried out by the use of phoropter and optotypes on the LCD monitor. Bland–Altman plots were used as a method of statistical analysis. Calculations were made by the use of the programs Excel 2000 and MedCalc. Three variables d, T and H were defined as the differences in spherical lens powers, right and left eye respectively, after monocular refraction (d ), after the balance of accommodation by the TIB test (T ) and after the balance of accommodation by HIC test (H ). The mean difference between TIB and HIC methods for the same individuals was +0.05 (95% limits of agreement: from –0.40 to +0.51 D), the mean difference between the refraction monocular (d ) and the TIB method (T ) was +0.01 D (95% limits of agreement: –0.48 to +0.50 D), the mean difference between monocular refraction (d ) and HIC method (H ) was 0.07 D (95% limits of agreement: from –0.56 to +0.69 D). Comparison of the selected methods of balancing accommodation shows that for patients, in whom it can be used, the Turville infinity balance test is a superior method to the Humphriss immediate contrast test.

Słowa kluczowe

EN

binocular balance; Turville infinity balance; Humphriss immediate contrast

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2014
• Tom: Vol. 44, nr 1
• Strony: 79--91
• Opis fizyczny: Bibliogr. 14 poz., tab., wykr.

Twórcy

autor

Pempera P

• Postgraduate Study of Optometry, Department of Optometry and Biology of Visual System, Poznań University of Medical Sciences, Poznań, Poland

autor

Feltzke M

• Department of Optometry and Biology of Visual System, Poznań University of Medical Sciences, Poznań, Poland

autor

Miskowiak B

• Department of Optometry and Biology of Visual System, Poznań University of Medical Sciences, Poznań, Poland

Bibliografia

• [1] GENTSCH L.W., GOODWIN H.E., A comparison of methods for the determination of binocular refractive balance, American Journal of Optometry and Archives of American Academy of Optometry 43(10), 1966, pp. 658–663.
• [2] RABBETTS R.B., Bennett and Rabbett’s Clinical Visual Optics, Butterworth-Heineman, Oxford, 1998.
• [3] BORISH I.M., BENJAMIN W.J., Monocular and binocular subjective refraction, [In] BENJAMIN W.J. [Ed.], Borish’s Clinical Refraction, Butterworth-Heineman, St. Louis, 2006, pp. 790–872.
• [4] CARLSON N.B., KURTZ D., Clinical Procedures for Ocular Examination, McGraw-Hill, New York, 2004.
• [5] ELLIOT D., Clinical Procedures in Primary Eye Care, Butterworth-Heineman, Oxford, 2003.
• [6] FRANKLIN A., Binocular balancing and binocular refraction, [In] KEIRL A.W., CHRISTIE C., Clinical Optics and Refraction – A Guide for Optometrists, Contact Lens Opticians and Dispensing Opticians, Elsevier, Philadelphia, 2007, pp. 124–131.
• [7] MORGAN M.W., The Turville infinity binocular balance test, Australian Journal of Optometry 32(8), 1949, pp. 367–380.
• [8] HUMPHRISS D., Binocular refraction, [In] EDWARDS K., LLEWELLYN R., [Eds.], Optometry, Butterworths, London, 1988, pp. 140–149
• [9] SHAPIRO J., Parallel-testing infinity balance. Instrument and technique for the parallel testing of binocular vision, Optometry and Vision Science 72(12), 1995, pp. 916–923.
• [10] FLETCHER R., STILL D.S., Eye Examination and Refraction, Blackwell Science, Oxford, 1998.
• [11] ZADNIK K., MUTTI D.O., BULLIMORE M.A., Use of statistics for comparing two measurement methods, Optometry and Vision Science 71(8), 1994, pp. 539–541.
• [12] ALTMAN D.G., BLAND J.M., Measurement in medicine: the analysis of method comparison studies, The Statistician 32, 1983, pp. 307–317.
• [13] ALTMAN D.G., BLAND J.M., Statistical methods for assessing agreement between two methods of clinical measurement, The Lancet 327(8476), 1986, pp. 307–310.
• [14] WEST D., SOMERS W.W., Binocular balance validity: a comparison of five common subjective techniques, Ophthalmic and Physiological Optics 4(2), 1984, pp. 155–159.