ISSN: 1300-0365
Dil: Türkçe
|
|
|
A Comparative Study Of Refraction In Emmetropic Eyes Withautomated Refractometer And Retinoscopy
Mehmet Numan ALP *, Huban ATİLLA**, Necile ERKAM ***
* Dr.,Ankara Üniversitesi Tıp Fakültesi Göz Hastalıkları AD,** Uz.Dr.,Ankara Üniversitesi Tıp Fakültesi Göz Hastalıkları AD,*** Prof.Dr.,Ankara Üniversitesi Tıp Fakültesi Göz Hastalıkları AD, ANKARA
In order to evaluate the accuracy of automated refractometers being more commonly used in clinical practice, we designed a comparative study of refraction in 222 emmetropic eyes of 111 subjects, separated in three groups according to the technique used to detect the refractive status, with the Shin-Nippon SR-7000 Auto-Refractometer and retinoscopy, the basic technique in refraction. The results of automated refractometer before and after cycloplegia; automated refractometer and retinoscopy without cycloplegia; and automated refractometer and retinoscopy with cycloplegia were analysed in each group respectively. Although, on automated refractometer without cycloplegia the spheric component of refraction skewed towards more minus in emmetropic eyes (p<0.0001), this error declined with the use of cycloplegics (p>0.001). Determination of cylindrical component and its axis was found to be reliable. We concluded that the automated refractometers are not so suitable devices for detection of refracitive errors, especially in children and strabismus patients. If it is necessary to use these instruments in refraction, cycloplegia must be applied.Keywords: Automated refractometer, Retinoscopy,
Refraction, CycloplegiaTurkiye Klinikleri J Ophthalmol 1998, 7:178-183
|
|
|
|
|
