Intrastromal Corneal Ring Segments and Toric Phakic Posterior Intra-ocular Lenses Implantation in Keratoconus
Study Details
Study Description
Brief Summary
To compare visual and refractive measurements of intrastromal corneal ring segments versus toric phakic posterior intra-ocular lenses implantation in keratoconus
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Detailed Description
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The study is a prospective comparative interventional case series. It will be conducted in Minia university hospital and Roaa Laser Vision Correction Center.
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Fourty eyes will be evenly allocated into two groups:
Group (A): 20 eyes will undergo corneal collagen cross linking (epithelium off) 1 month after Femtosecond laser assisted intrastromal corneal keraring segments.
Group (B): 20 eyes will undergo toric phakic posterior IOL implantation 1 year after corneal collagen cross linking (epithelium off).
• An informed written consent to be involved in the study will be obtained from each patient.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Active Comparator: corneal collagen cross linking and intrastromal corneal keraring segments. 20 eyes will undergo corneal collagen cross linking (epithelium off) 1 month after Femtosecond laser assisted intrastromal corneal keraring segments |
Other: corneal ring segments
ring hard segments inserted within corneal stroma using femtolaser
Other Names:
|
Active Comparator: toric phakic posterior IOL implantation and corneal collagen cross linking 20 eyes will undergo toric phakic posterior IOL implantation 1 year after corneal collagen cross linking (epithelium off). |
Other: corneal ring segments
ring hard segments inserted within corneal stroma using femtolaser
Other Names:
|
Outcome Measures
Primary Outcome Measures
- pentacam readings [1 month]
a device that read topometric corneal data and other data
Eligibility Criteria
Criteria
Inclusion Criteria:
- Keratoconus grade I to III according to the Amsler-Krumeich classification
Exclusion Criteria:
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Acute hydrops or grade IV keratoconus
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Any ocular diseases or surgeries
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Corneal thickness less than 400 µm at the thinnest corneal point, and at least 450 µm at the incision site for ICRS group
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Corneal pacities
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Ahmed Maher Khalafallah | Minya | Egypt |
Sponsors and Collaborators
- Minia University
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 324 : 11/2019