The relative luminous efficiency curves for light entering different parts of the entrance pupil [Stiles-Crawford functions (SCFs)] of subject TG, whose right eye is amblyopic, were determined earlier for both the normal and the amblyopic eye. The left eye was found to have a normal SCF, varying from the center to the edge of the entrance pupil by an entire log unit. However, the SCF for the right eye was found to be abnormal, showing peak sensitivity far toward the temporal edge of the pupil and varying from center to edge by only one-third of a log unit. From these data it was inferred that the photoreceptors were in poor alignment. In October, 1993 the subject experienced a retinal detachment in the left (nonamblyopic) eye, requiring cryoretinopexy, drainage of subretinal fluid, and a scleral buckle. Postoperatively, visual acuity recovered to 6/9 to 6/7.5 (20/30 to 20/25), but vision was poor when illumination or contrast was low. In order to determine whether the decrement in visual performance was the result of misalignment of the photoreceptors, the subject's SCFs were determined 9 months postoperatively for both eyes, using a procedure similar to that used earlier. The relative luminous efficiency curves for both eyes were found to be surprisingly similar to the corresponding curves found 38 years earlier. It was concluded that any decrease in visual function resulting from the retinal detachment and repair was not caused by misalignment of the photoreceptors. We infer that the mechanisms resulting in the exceptionally high degree of photoreceptor alignment in the left eye and the disturbed alignment in the right eye are still present.

Download full-text PDF

Source
http://dx.doi.org/10.1097/00006324-199503000-00005DOI Listing

Publication Analysis

Top Keywords

relative luminous
8
luminous efficiency
8
efficiency curves
8
entrance pupil
8
left eye
8
varying center
8
center edge
8
log unit
8
retinal detachment
8
misalignment photoreceptors
8

Similar Publications

Enhancing gel and 3D printing performance of lipid-enhanced skipjack tuna (Katsuwonus pelamis) surimi via Pickering high internal phase emulsion.

Food Res Int

February 2025

Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Key Laboratory of Seafood Processing of Haikou, College of Food Science and Technology, Hainan University, Hainan 570228, China; Collaborative Innovation Center of Provincial and Ministerial Co-Construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian 116034, China. Electronic address:

This study explored the effect of lactoferrin (LF)-stabilized fish oil Pickering high internal phase emulsions (HIPPEs) on the gel property and 3D printing performance of skipjack tuna surimi compared with directly added fish oil. Based on the various environmental stress stability, HIPPEs could remain relatively stable when added to surimi gels. The luminance and whiteness of skipjack tuna surimi gel were significantly (p < 0.

View Article and Find Full Text PDF

Pyroptosis, a recently identified cellular demise regulated by gasdermin family proteins, is emerging as a promising avenue in cancer immunotherapy. However, the realm of light-controlled pyroptosis in cancer cells remains largely unexplored. In this study, we took a deliberate approach devoid of any chemical alterations to develop a novel photosensitizer called "pharmaceutical-dots (pharm-dots)" by combining nonemissive polymers (Poly (lactic-co-glycolic acid), PLGA) with nonfluorescent invisible molecules like curcumin, berberine, oridonin into PLGA nanoparticles (PLGA-NPs).

View Article and Find Full Text PDF

A salience map is a topographic map that has inputs at each x,y location from many different feature maps and summarizes the combined salience of all those inputs as a real number, salience, which is represented in the map. Of the more than 1 million Google references to salience maps, nearly all use the map for computing the relative priority of visual image components for subsequent processing. We observe that salience processing is an instance of substance-invariant processing, analogous to household measuring cups, weight scales, and measuring tapes, all of which make single-number substance-invariant measurements.

View Article and Find Full Text PDF

Research on multifunctional luminous materials has garnered a lot of interest in the fields of optical sensing, biological imaging, white light-emitting diodes illumination, etc. A novel multifunctional phosphor of Pr-doped BiMoO (BMO: Pr), created via the solid-state method, was investigated in this work. X-ray diffraction, scanning electron microscopy, diffuse reflectance spectroscopy, photoluminescence spectra, and fluorescence decay curves were employed to analyze the produced phosphors.

View Article and Find Full Text PDF

Purpose: Changes in choroidal thickness (ChT) are proposed to predict myopia development but evidence is mixed. We investigated time courses of choroidal responses, following different types of dynamic artificial stimulation in chicks with and without spectacle lenses, as well as changes in retinal dopamine metabolism and expression of candidate genes.

Methods: Chicks were kept in an arena surrounded by computer monitors presenting dynamic checkerboard fields of small, medium and large size.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!