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The present study is designed as an exploratory study, seeking to investigate the correlation of patient complaints to subjective or objective measurement methods. Better understanding of causative factors of negative dysphotopsia will improve detection and maybe prediction of this optical phenomenon.
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| Measure | Description | Time Frame |
|---|---|---|
| Identification of factors or a combination thereof that may cause negative dysphotopsia | Biometry, Anamnesis, visual field, psychological questionnaires, wavefront aberrometry will be used to analyse if a factor causative for negative dysphotopsia can be detected | 2 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Method to standardize characterization of negative dysphotopsia | New approaches like Goldmann visual field are used to try to picture negative dysphotopsias and patients will also be asked to draw the "dark shadows" | 20 minutes |
| Correlation between eye biometry, patient complaints and psychophysics |
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Inclusion Criteria:
Exclusion Criteria:
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10 patients after cataract extraction, suffering from negative dysphotopsia
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Oliver Findl, MD, Prof. | Contact | 004319102157564 | office@viros.at |
| Name | Affiliation | Role |
|---|---|---|
| Oliver Findl, MD, Prof. | Vienna Institute for Research in Ocular Surgery | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hanusch-Krankenhaus | Recruiting | Vienna | A-1140 | Austria |
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| ID | Term |
|---|---|
| D002386 | Cataract |
| ID | Term |
|---|---|
| D007905 | Lens Diseases |
| D005128 | Eye Diseases |
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Eye biometry will be measured using IOL Master 700, patient complaints will be asked during an patient-doctor interview, and psychophysics will be assessed using a psychological questionnaire |
| 30 minutes |