Comparison Between Different Investigations Used in Intraocular Lens Calculation in High Myopic Cataractous Patients

Sohag University

Status

Unknown

Conditions

Calculation of Intraocular Lens in High Myopic Cataractous Patients

Treatments

Device: optical biometry

Device: ultrasonic biometry

Study type

Interventional

Funder types

Other

Identifiers

NCT04952181

Soh-Med-21-06-01

Details and patient eligibility

About

the purpose of the study is to compare the accuracy of optical and ultrasonic biometry in intraocular lens (IOL) calculation in high myopic cataractous patients

Full description

Prospective interventional (QUASI experimental) comparative study
This study will be conducted on high myopic cataractous patients scheduled for phacoemulsification and IOL implantation in department of ophthalmology, Sohag university
patients will be divided into 2 groups one will be subjected to intraocular lens (IOL) calculation by optical biometry the second one will be subjected to intraocular lens (IOL) calculation by ultrasonic biometry
postoperative auto refraction after I month

Enrollment

40 estimated patients

Sex

All

Ages

30+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

patients with simple cataract not associated with other pathologies suitable for phacoemulsification and 1ry IOL implantation With axial length (AXL) equal to or greater than 26.5mm

Exclusion criteria

History of trauma
Associated pathologies such as optic neuropathy, age related macular degeneration, macular edema, retinal detachment, , ocular inflammation, retinitis pigmentosa, proliferative diabetic retinopathy
corneal opacities or irregularities, scars, dystrophy or ectasia
Patients who underwent previous corneal surgery (including refractive surgery)
Patients having intraoperative complications as inability to achieve secure 'in the bag' placement of the IOL (i.e. due to posterior capsule rupture, vitreous loss, weak zonules, or zonular rupture)