Julius Liubinas

THE ROLE OF CORNEAL DISTORTION IN THE OCCURRENCE OF MONOCULAR DIPLOPIA

The measurement of anterior corneal surface topography before and during the occurrence of monocular diplopia can be used to predict the angular positions of any secondary images resulting from corneal distortion. The predictions correlate at a statistically significant level with direct measurements of the positions of the secondary images.

Orthokeratology case reports

Orthokeratology is a clinical technique which uses the programmed application of contact lenses to reduce refractive error. It is a safe and reversible option for myopia correction. This report describes two successful orthokeratology patients who wear their contact lenses on every fourth or fifth night. The findings suggest a biphasic mechanism in the orthokeratology process.

Photorefractive keratectomy: a case report

A case of a 52‐year‐old male who underwent photorefractive keratectomy is reported. The major complications included variable refraction, deteriorating visual acuity, corneal scarring and haze, monocular polyopia and dry eye. (CM Exp Optom 1995: 78: 4:130–134)

The influence of environment on the performance of the Bausch and Lomb Low Heat Unit

Time/temperature profiles for the Bausch and Lomb Low Heat Contact Lens Disinfection Unit were established during operation under a number of extreme but possible environmental conditions. These included low voltages, partially filled contact lens cases, low environmental temperature, grit in the heat well, saline in the heat well and combinations of these. Only the extreme combination of low temperature and grit in the heat well lowered performance to an unacceptable level. We recommend that practitioners strongly advise patients to keep the units clean.