Teste de sensibilidade ao contraste e teste de ofuscamento no paciente portador de catarata

Teste de sensibilidade ao contraste e teste de ofuscamento no paciente portador de catarata

Autores:

Augusto Cezar Lacava,
Virgílio Centurion

ARTIGO ORIGINAL

Arquivos Brasileiros de Oftalmologia

versão impressa ISSN 0004-2749versão On-line ISSN 1678-2925

Arq. Bras. Oftalmol. vol.62 no.1 São Paulo fev. 1999

http://dx.doi.org/10.5935/0004-2749.19990051

SUMMARY

Purpose:

To verify the clinical usefulness of glare test and to measure contrast sensitivity function in patients with cataract.

Methods:

Twenty eyes from 20 consecutive cataract patients were studied. Mean age was 64. 9 years. Ali were submitted to a complete ophthalmological examination and had their visual acuity measured using the Snellen Chart, the VCTS 6500 Chart ( Vistech Consultants, Inc.) and MCT 8000 ( Vistech Consultants, Inc.).

Results:

The results were converted to a MAR log scale and they showed that VCT 6500 and MCT 8000 are able to measure a change in the day and night visual acuity in patients with cataract.

Conclusions:

The authors concluded that the two tests are valuable a uxilia ry to o ls when s uggesting phakectomy surgery in cataract patients with visual acuity ≥ 20140.

Keywords: Contrast sensitivity; Glare; Cataract; Visual acuity

REFERÊNCIAS

1 Cataract Management Guideline. Pannel management of functionai impairment due to cataract in adults. Ophthalmology 1993 ; 100:Suppl.
2 Jindra LF, Zemon V. Contrast sensitivity testing: a more complete assessment of vision. J Cataract Refract Surg 1989;15:141-8 .
3 Arden GB. The importance of measuring contrast sensitivity in cases o f visual disturbance. British J Ophthalmol 1978;62: 198-209.
4 Imamura PM, Ohba N. Sensitividade ao contraste espacial: interposição de lentes positivas. Arq Bras Oftal 1980;43:201-5 .
5 Silva AC, Hu T, Rispoli E, Moretti S, Tommasini P. Estudo d a sensibilidade ao contraste com nova metodologia e equipamento de testes. Rev Bras Oftal 1992;51:29-37.
6 Abrahamsson M, Sjöstrand J. lmpairment of contrast sensitivity function (CSF) as a measure of disability glare. Invest Ophthalmol Vis Sci 1986;1131-6.
7 Williamson TH, Strong NP, Sparrow J, Aggarwal RK, Harrad R. Contrast sensitivity and glare in cataract using lhe Pelli Robson Chart. Br J Ophthalmol 1992;76:719-22.
8 Marmos MF, Gawand A. Effect of visual blur on contrast sensitivity: clinical implantations. Ophthalmology 1988;95:139-43.
9 Andrade HSAB, Correa SMB, Resende DG et al. Sensibilidade ao contraste e teste de glare ou teste de ofuscamento: uma nova abordagem na avaliação da performance visual. Rev Bras Oftal 1994;53:55-8.
10 Hoskins Jr HD. Cataract surgery: maintaining the excellence. J Cataract Refract Surg 1996,22:643-4.
11 Lasa MS, Datiles III MB, Pagdor MJ, Magno BV . Contrast and glare sensitivity: association with the type and severity of cataract. Ophthalmology 1992;99:1045-9.
12 Nadler DJ. Glare and contrast sensitivity in cataracts and pseudophakia. ln: Nadler MP, Muller D, Nadler DJ eds. Glare and contrast sensitivity for clinicians. New York, Springer - Verlag 1990;53-65.
13 Bailey IL, Bullimore MA, Raash TW, Taylor HR. Clinicai Grading and the effects of scaling. Invest Ophthalmol Vis Sci 1991;32:422-32.
Política de Privacidade © Copyright, Todos os direitos reservados.