Comparison of Ocular Alignment Using Corneal Reflex Measurements with Plusoptix S08 between Non–strabismic Amblyopes and Normal Controls

Aims: Purpose of this study is to compare corneal reflex value measurements performed by the Plusoptix S08 photo-screener between anisometropic non–strabismic amblyopic children and non-amblyopic children.

Study Design: This is a randomized and controlled prospective study.

Place and Duration of Study: Department of Ophthalmology, Medical Faculty of Istanbul Medipol University between September 2012 and December 2012.

Methodology: Corneal reflex values of 39 amblyopic non-strabismic children and 28 normal children were compared after complete ophthalmoscopic examination by the same examiner. Only patients with anisometropic amblyopia without strabismus were included in the study group and only non-amblyopic children were included in the control group.

Results: There was no statistical significance between the study and the control group in means of age (p=0.100) and sex distribution (p=0.818). Corneal reflex values of the

amblyopic eyes was 3.8±3.2 degrees and corneal reflex values of normal eyes was 2.4±4.1 degrees. There was no statistical significance between study and control group in means of corneal reflex values (p=0.127).

Conclusion: Although Plusoptix has proved to be a reliable screener in terms of measurement of refraction, we did not know whether the corneal reflex value was also a reliable screening value, because there is no research about this value in the literature. According to the current literature this is the first research examining the corneal light reflex reliability of a Plusoptix S08 photo-screener and, in light of our results, the corneal reflex value of Plusoptix S08 is not a reliable tool for the screening of amblyogenic risk factors in non-strabismic children.