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Effectiveness of lutein, zeaxanthin and trypan blue to stain the anterior lens capsule during cataract phacoemulsification.
Twenty patients with cataract (nuclear, entumecente, total) and indication for cataract surgery will be selected to participate in this study.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| dye of lutein, zeaxanthin, trypan blue | Experimental | during the surgery will be evaluated if the dye is suitable for dyeing anterior lens capsule |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| dye of lutein, zeaxanthin, trypan blue | Other | dye composed of lutein, zeaxanthin, trypan blue |
|
| Measure | Description | Time Frame |
|---|---|---|
| Visibility of the anterior lens capsule after the injection of dye | The visibility of the anterior lens capsule after the injection of dye, should be graduated as Bad OR Fair OR Good OR Fine | during the cataract surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Degree of impregnation of the dye | The degree of impregnation of the anterior lens capsule by the dye should be graduated acording to the following scale:(0)not flushed; (1)stained weakly (light green); (2)moderately stained (medium green); (3)stained intensely (dark green) | during the surgery |
| usefulness of the dye |
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Inclusion Criteria
Exclusion Criteria
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| Name | Affiliation | Role |
|---|---|---|
| Rubens Belfort Jr, MD, PhD | Fderal University of São Paulo | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Dept. of Ophthalmology - UNIFESP/Hospital São Paulo | São Paulo | São Paulo | 04023-062 | Brazil |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25295905 | Background | Vianna LM, Cohen MJ, Muccioli C, Lima A, Sousa-Martins D, Maia M, Belfort R Jr. Efficacy of a lutein-based dye (Phacodyne) for visualizing anterior capsulorhexis during cataract surgery by phacoemulsification. Arq Bras Oftalmol. 2014 May-Jun;77(3):173-7. doi: 10.5935/0004-2749.20140044. |
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| ID | Term |
|---|---|
| D002386 | Cataract |
| ID | Term |
|---|---|
| D007905 | Lens Diseases |
| D005128 | Eye Diseases |
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| ID | Term |
|---|---|
| D065146 | Zeaxanthins |
| D014343 | Trypan Blue |
| ID | Term |
|---|---|
| D024341 | Xanthophylls |
| D002338 | Carotenoids |
| D011090 | Polyenes |
| D000475 | Alkenes |
| D006839 |
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the physician should evaluate the usufelness of the dye, according to the following scale: Bad, Fair, Good, Fine |
| at the end of the cataract surgery |
| Hydrocarbons, Acyclic |
| D006838 | Hydrocarbons |
| D009930 | Organic Chemicals |
| D053138 | Cyclohexenes |
| D003510 | Cyclohexanes |
| D003516 | Cycloparaffins |
| D006840 | Hydrocarbons, Alicyclic |
| D006844 | Hydrocarbons, Cyclic |
| D013729 | Terpenes |
| D010860 | Pigments, Biological |
| D001685 | Biological Factors |
| D001391 | Azo Compounds |
| D009282 | Naphthalenesulfonates |
| D009281 | Naphthalenes |
| D011084 | Polycyclic Aromatic Hydrocarbons |
| D006841 | Hydrocarbons, Aromatic |
| D001190 | Arylsulfonates |
| D017739 | Arylsulfonic Acids |
| D013451 | Sulfonic Acids |
| D013456 | Sulfur Acids |
| D013457 | Sulfur Compounds |
| D011083 | Polycyclic Compounds |