Correlations between M-CHARTS and PHP findings and subjective perception of metamorphopsia in patients with macular diseases.

Purpose: To assess the correlations between a patient's subjective perception of metamorphopsia and the clinical measurements of metamorphopsia by M-CHARTS and PreView PHP (PHP).

Methods: The authors designed a 10-item questionnaire focusing on the symptoms of metamorphopsia and verified its validity with a Rasch analysis. M-CHARTS measured the minimum visual angle of a dotted line needed to detect metamorphopsia, and PHP used the hyperacuity function for detection.

Detectability of glaucomatous changes using SAP, FDT, flicker perimetry, and OCT.

Purpose: To compare the detectability between glaucomatous visual field changes using standard automated perimetry (SAP), frequency doubling technology (FDT), short-wavelength automated perimetry (SWAP), and flicker perimetry and structural changes using optical coherence tomography (OCT).

Participants: Fifty-nine eyes of fifty-nine patients with open-angle glaucoma, 24 eyes of 24 glaucoma suspects (GSs), and 40 eyes of 40 healthy age-matched subjects.

Methods: All subjects underwent Humphrey visual field analyzer II 24-2 full threshold (SAP), Swedish interactive threshold algorithm-SWAP, FDT (30-1, 30-5, 24-2-1, 24-2-5), flicker perimetry on Octopus 311 (4-zone probability 38S), and Stratus OCT [fast retinal nerve fiber layer thickness (NFLT) and fast optic disc].

Surgical therapies for Acanthamoeba keratitis by phototherapeutic keratectomy and deep lamellar keratoplasty.

Purpose: To report the efficacy of phototherapeutic keratectomy (PTK) and deep lamellar keratoplasty (DLKP) in the treatment of Acanthamoeba keratitis.

Methods: Two patients with delayed diagnosis of Acanthamoeba keratitis failed to respond to multiple systemic and topic antiamoebic agents supplemented by twice-weekly corneal scraping. Three weeks into such therapy, one developed a ring-shaped subepithelial infiltration and PTK was performed.

Quantification of metamorphopsia in a macular hole patient using M-CHARTS.

Purpose: In cases of macular hole, metamorphopsia is one of the most important symptoms, along with decreased visual acuity and a central scotoma. We investigated the relationship between the degree of metamorphopsia and the morphological appearance of macular holes.

Methods: Using M-CHARTS developed by ourselves, we quantified the metamorphopsia scores in 35 eyes with an idiopathic macular hole in 35 patients.

Automated flicker perimetry in glaucoma using Octopus 311: a comparative study with the Humphrey Matrix.

Purpose: We evaluated the clinical usefulness of flicker perimetry in glaucoma and glaucoma suspect patients using the new Octopus 311 automated perimeter.

Methods: A total of 52 eyes of 52 glaucoma patients, 26 eyes of 26 glaucoma suspect patients and 61 eyes of 61 normal subjects were examined using standard automated perimetry (SAP), flicker perimetry and frequency doubling technology (FDT) perimetry. Flicker perimetry was performed using the Octopus 311 and its remote software package.

Retinal contraction and metamorphopsia scores in eyes with idiopathic epiretinal membrane.

Purpose: Using M-CHARTS (Inami Co., Tokyo, Japan), which were developed by the authors to measure metamorphopsia, and image-analysis software, which was developed to quantify retinal contraction, the authors investigated the relationship between the degree of retinal contraction and the degree of metamorphopsia in eyes with idiopathic epiretinal membrane (ERM).

Methods: This study was conducted in 29 eyes with ERM (29 patients, 20 women; mean age, 62.

Quantification of metamorphopsia in patients with epiretinal membranes.

Purpose: To quantify the degree of metamorphopsia in patients with idiopathic epiretinal membranes (ERMs), by use of a new metamorphopsia chart (M-CHARTS) developed by the authors.

Methods: These M-CHARTS had 19 dotted lines with dot intervals of between 0.2 degrees (fine) and 2.