Unequal pupil size in patients with unilateral red eye.

Unequal pupil size in patients with unilateral red eye.

syndrome2-that is, manipulation by the patient. Cassey et al and Ball et al reported the use of a metal port in similar patients to ours and found a high incidence of problems including venous thrombosis, occlusion of the catheter, and detachment or fracture of the catheter.34 Cassey et al suggested that these ports should be used only in inpatients because of septic complications. Our only cas...

Pen torch test in patients with unilateral red eye.

Pupil size and retinal straylight in the normal eye.

PURPOSE Glare problems originating from bright lights are generally experienced more strongly at night. The typical disability glare is known to result from retinal straylight. In this study, the effects of pupil diameter and, especially in the case of small pupils, of eye wall translucency on the amount of retinal straylight were investigated. METHODS Straylight was measured as a function of...

Optimal pupil size in the human eye for axial resolution.

A computer model that incorporates the monochromatic aberrations of the eye is used to determine the optimal pupil size for axial and lateral resolution as it applies to retinal imaging instruments such as the confocal scanning laser ophthalmoscope. The optimal pupil size for axial resolution, based on the aberrations of 15 subjects, is 4.30 mm +/- 1.19 mm standard deviation (sd), which is larg...

Pupil size following dark adaptation in patients with retinitis pigmentosa.

According to the equivalent light hypothesis, molecular defects in the photoreceptor lead to a continuous activation of the photoreceptor cascade in a manner equivalent to real light. The consequences in diseases such as retinitis pigmentosa (RP) are as disruptive to the cells as real light. Two forms of the equivalent light hypothesis can be distinguished: strong - mutations in rhodopsin or ot...