Effect of optical quality on retinal thresholds

Effect of optical quality on retinal thresholds - Effect of optical quality on retinal thresholds

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON46489

Enrollment

Registered

2018-03-15

Start date

2018-10-21

Completion date

Unknown

Last updated

2024-04-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glaucoma

Interventions

None listed

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Phakic and pseudophakic POAG and PACG patients and phakic PAC patients scheduled for CLE, who visit the ophthalmology clinic at University Medical Center Groningen, that have provided the signed informed consent form and meet the inclusion-exclusion criteria. Healthy subjects between ages 50 and 75, who have provided the signed informed consent form and returned the questionnaire with results which do not indicate ophthalmic abnormalities.

Exclusion criteria

Exclusion criteria: POAG patients;Visual acuity less than 0.8 Refractive surgery (LASIK, LASEK, RK, PRK, etc.) Non-glaucomatous visual field loss History of closed or blocked angle Myopia or hyperopia higher than 3D For pseudophakic patients only: IOL model implanted different than TECNIS Monofocal, Model ZCB00 (default lens in UMCG) and preoperative myopia/hyperopia higher than 3D Phakic PAC patients scheduled for CLE;Visual acuity less than 0.8 Refractive surgery (LASIK, LASEK, RK, PRK, etc.) Non-glaucomatous visual field loss IOL model to be implanted different than TECNIS Monofocal, Model ZCB00 and preoperative myopia higher than 3D;Healthy Subjects;Visual acuity less than 0.8 Refractive surgery (LASIK, LASEK, RK, PRK, contact lenses, etc.) Any visual field loss Intraocular pressure above 21 mmHg Positive family history of glaucoma Myopia/hyperopia higher than 3D Angle closure more than 180 degrees For pseudophakic patients only, IOL model implanted different than TECNIS Monofocal, Model ZCB00 and preoperative myopia/hyperopia higher than 3D

Design outcomes

Primary

Measure	Time frame
Optical aberrations measured using aberrometry and retinal sensitivity thresholds measured by means of perimetry.	—

Secondary

Measure	Time frame
Corneal aberrations, ocular biometry, ocular scatter, intraocular pressure, visual acuity and refraction these parameters are used for descriptive statistics, to characterize the study population.	—

Countries

Netherlands

Outcome results