PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Visual function”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 973 records · Page 54Linked to original sources
PubMed1986

Statistical evaluation of visual functions in dominant and recessive autosomal pigmentary retinopathy.

A statistical study of the progress of fundus lesions and functional loss in relation with age and with inheritance modus was performed in patients with pigmentary retinopathy. A three-way interaction was found between following parameters: inheritance modus, age and pigment anomalies of the fundus; inheritance modus, age and visual field; inheritance modus, age and ERG; inheritance modus, vision and ERG; inheritance modus, dark adaptation and visual field.

Adolescent↗
PubMed1993

Improvement in visual function after displacement of the retinal elevations emanating from optic pits.

OBJECTIVE: To define the functional deficit that correlates with the inner layer separation and the outer layer detachment that have been observed in optic pit maculopathy and to determine the effect of a gas tamponade that compresses or displaces the two layers. DESIGN: The central visual field before and after a gas tamponade on the posterior pole were charted on a 1-m tangent screen and compared with the changes in the retina observed biomicroscopically and with stereophotography. SETTING: The gas operations were done at four hospitals in the New York, NY, area and one in Cleveland, Ohio. The retinal examinations, visual field testing, and stereoscopic photography for eight patients were done at The New York Hospital. The patient who lived in Cleveland was examined and photographed in Cleveland. PARTICIPANTS: Nine patients between the ages of 18 and 46 years with optic pit maculopathy. INTERVENTION: The patients were operated on by five retinal surgeons with a variety of procedures. Four patients had a vitrectomy and intraocular gas injected. Five patients had gas injected after external compression. Two patients had laser applied in conjunction with the intraocular injection. The gas tamponade was the unifying factor. RESULTS: The dense central scotoma in optic pit maculopathy relates to the outer layer detachment and displacement of it from the posterior pole yields an improvement in visual acuity. The inner layer separation persists centrally after a gas tamponade and continues to provide access for the flow of fluid from the pit. The scotoma that relates to the inner layer separation is mild and consistent with relatively good visual acuity.

Adolescent↗
PubMed1995

Visual field defects in diabetic children without retinopathy. Relation between visual function and microalbuminuria.

The effects of diabetes on retinal function before the onset of clinically detectable retinopathy have been investigated with several methods. Our aim is to evaluate the usefulness of computerized perimetry in early diagnosis of retinal sensitivity impairment in lack of fluorescein angiographic signs of diabetic retinopathy. Seventy diabetic children and adolescents, 39 normoalbuminuric and 31 microalbuminuric patients, and 70 normal subjects were investigated with static computerized perimetry. Normoalbuminuric patients showed functional parameters similar to those of controls, while microalbuminuric patients had a significant reduction of mid-peripheral light sensitivity in comparison with both normoalbuminuric children and controls. Our data suggest that an impaired light sensitivity, in mid-periphery of the visual field, is present in diabetic patients with persistent microalbuminuria.

Adolescent↗
PubMed2003

Effect of pupil size on visual function under monocular and binocular conditions in LASIK and non-LASIK patients.

PURPOSE: To compare binocular and monocular vision in patients treated with laser in situ keratomileusis (LASIK) and in non-LASIK patients. SETTING: Jules Stein Eye Institute, Los Angeles, California, USA. METHODS: This comparative cross-sectional study comprised 20 postoperative LASIK patients and 20 non-LASIK ametropic patients. LogMAR visual acuity, contrast sensitivity, and infrared pupillometry were tested. Outcome measures were better-eye monocular acuity, binocular acuity, better-eye contrast sensitivity, binocular contrast sensitivity, and pupil diameter under monocular and binocular conditions. RESULTS: Binocular visual acuity and contrast sensitivity were statistically significantly better than the visual acuity in the better eye (P =.0047 to <.0001) in both patient groups. Pupil diameter was statistically significantly smaller under the binocular condition than the monocular condition (P <.0001) in both groups. CONCLUSIONS: Monocular testing induced larger pupil diameters, which was associated with reduced vision compared to binocular measurements in LASIK and non-LASIK patients.

Adult↗