G H Kolling

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Two differently constructed stereotests for a distance of 4 m are presented (tests A and B), which are based on the three-rod method of Helmholtz. In both tests, eight test objects are offered simultaneously, one of them being displaced toward the subject to a certain extent (100-10 s of arc). In test A the subject sees the eight test objects through eight(More)
Intraoperative continuous-registration length and tension curves of attached and detached eye muscles were made in 18 strabismic patients under general anesthesia. For relaxed eye muscles, we found an exponential relation between length and tension. An increased stiffness was quantified in Duane's syndrome, Graves' disease, orbital-floor fracture, and(More)
PURPOSE To investigate the diagnostic occlusion test (OT) according to Marlow in strabismus sursoadductorius (StS; also known as 'unilateral superior oblique palsy') and its implications for surgical treatment. METHODS In 67 cases of StS, angles of strabismus were measured before and after patching the affected eye for three days. Horizontal, vertical and(More)
We have made intraoperative, continuous-registration, length-tension diagrams of detached eye muscles in 80 strabismus patients under general anaesthesia. In 47 of these we repeated the measurements after contraction evoked by succinylcholine chloride. In contracting horizontal and vertical rectus muscles, we found a linear relation between length and(More)
Infantile esotropia (IE) is defined as an esotropia before the age of 6 months, with a large angle, latent nystagmus, dissociated vertical deviation, limitation of abduction, and reduced binocular vision, without neurological disorder. Prematurity, low birth weight, and low Apgar scores are significant risk factors for IE. US standard age of first surgery(More)
INTRODUCTION The purpose of the study is the development of a scoring system for the assessment of functional impairment due to visual field defects, based on the Esterman grid, but adapted to the existing system in the Federal Republic of Germany. METHODS The score areas and the evaluation rules were altered iteratively, until the functional score by the(More)
BACKGROUND The motorist obtains about 90% of the information required to drive a vehicle from the sense of vision. In road traffic, various situations with respect to size, distance, and position have to be evaluated at different speeds. Does depth perception based on disparity play an essential role in these situations? METHODS Each of ten subjects with(More)
Endoscopic and video-endoscopic visual acuity and color discrimination were investigated using a standard disk for testing visual acuity and a color discrimination test. A 1-chip-CCD-Camera (CCC) or 3-chip-CCD-Camera plus digital image processing (digivideo) on the endoscope and a 15 inch high resolution video monitor were used. Color discrimination was(More)
Congenital horizontal gaze paralysis is a rare disorder which may be associated with severe scoliosis of early onset. We present the clinical findings of two sisters with this syndrome. The additional finding of a unique pericentric inversion of chromosome 12 is considered to be incidental. Every child with congenital horizontal gaze paralysis should be(More)
Familial congenital horizontal gaze paralysis is a rare disorder supposedly transmitted in an autosomal recessive fashion. Typically, all horizontal, conjugate eye movements are absent. Most patients are orthotropic with regular binocular function. The complete lack of horizontal eye movements is compensated for by turning the head in the desired direction.(More)