Optics News

Postural control in congenitally blind subjects was significantly more stable than in individuals with acquired visual impairment, a study found.

Young adult emmetropes and myopes show an increase in axial length following periods of sustained near work, according to a study.

Vision is the perception of light. To comprehend the nature of human vision, an understanding of the properties of light is necessary. Many of the technologies used for examining the eye and treating ocular disease take advantage of the properties of light to better enable clinicians to perform successful evaluations. For example, the slit lamp uses electricity to generate light and lenses to project light into the eye. It uses more lenses to provide the viewer with a magnified image of the patient’s eye, and takes advantage of scatter to help visualize the cornea and crystalline lens, and their respective clarities. This tutorial specifically describes where light comes from, how it interacts with objects, and how can it be used to aid diagnosis and treatment of eye disorders.

Prescribing undercorrected spectacles to patients with refractive accommodative esotropia does not deteriorate vision, a study said.

Refractive error, particularly hyperopia, may be associated with grade and severity of conjunctivochalasis, according to a large study.

Dynamic contour tonometry yielded precise IOP measurements on normal corneas fitted with thin hydrogel contact lenses, a study found.

Patients who underwent Anwar's deep anterior lamellar keratoplasty without baring Descemet's membrane had delayed visual recovery but eventually achieved the visual results of patients who received DALK with baring of Descemet's membrane, according to a study.

Adding a part-time follow-up coordinator to the Iowa KidSight amblyopia photoscreening program contributed to an increased follow-up rate over a 9-year period, a study found.

The brains of early-blind individuals appear to reorganize, thereby retaining tactile and auditory sensory response.

Occlusion treatments with long mean duration times resulted in variable, unsatisfactory and expensive visual outcomes, contributing to noncompliance in pediatric amblyopia patients, a study found.