Visual outcomes after refractive laser corneal surgery and phakic IOL in amblyopic eyes
- PDF / 547,568 Bytes
- 8 Pages / 547.087 x 737.008 pts Page_size
- 83 Downloads / 189 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
ORIGINAL PAPER
Visual outcomes after refractive laser corneal surgery and phakic IOL in amblyopic eyes Bhupesh Singh . Sourabh Sharma . Neha Bharti . Amrita Singh . Suchit Dadia . Sudhank Bharti
Received: 23 February 2020 / Accepted: 2 June 2020 Ó Springer Nature B.V. 2020
Abstract Purpose To evaluate the outcomes of laser corneal surgery and phakic IOL surgery in adult amblyopic eyes. Methods Retrospective assessment was done in 688 amblyopic eyes 640 patients who underwent LASIK or phakic IOLs. Ophthalmological evaluation included measurement of uncorrected (UDVA) and corrected (CDVA) distance visual acuities. Analysis of modulation transfer function (MTF) was also done post-operatively as a measure of contrast sensitivity. Patients completed follow-up examinations at 1 day, 3 day, 3 months and 12 months after surgery. Results The mean patient age was 24.30 ± 3.04 years with 59% females. The CDVA of amblyopic eyes improved significantly from the mean preoperative level of 0.48 ± 0.18 to 0.59 ± 0.18 at 12 months. There was improvement in the contrast sensitivity at all spatial frequencies. Refractive errors were corrected in both LASIK and phakic IOL group, but there was no clinically significant difference in visual outcomes between each group. Conclusion Laser vision correction and phakic IOL surgery for amblyopic eyes are promising alternative methods for improving visual outcomes in adult B. Singh S. Sharma (&) N. Bharti A. Singh S. Dadia S. Bharti Bharti Eye Foundation and Hospital, New Delhi, India e-mail: [email protected]
refractive amblyopia patients who have failed with conventional approaches. Keywords Amblyopia LASIK Phakic intraocular lens Anisometropia
Introduction Amblyopia is defined as the reduction in bestcorrected visual acuity of one or both eyes that cannot be attributed exclusively to a structural abnormality of the eye. Amblyopia develops during childhood and results in the interruption of normal cortical visual pathway development. It is clinically defined as a difference in best-corrected visual acuity of 2 or more lines of acuity between the eyes [1, 2]. The disorder is exemplified by monocular and binocular decrease in vision, contrast sensitivity and stereopsis [3]. Out of the three different types of amblyopia, namely refractive, strabismus and visual deprivation amblyopia, the refractive ones are the most common [4]. Spectacles and contact lenses (CLs) are the traditional treatment options for refractive correction for amblyopia [5, 6]. A combination of time bound occlusion therapy and glasses works effectively for correction of amblyopia in children and early adolescents. However, a lot of these children don’t achieve complete emmetropia due to numerous reasons like delayed initiation of amblyopia therapy, non-compliance in patching or wearing
123
Int Ophthalmol
glasses, behavioural problems, uncorrected visual acuity in one eye or visually significant aniseikonia. Studies have showed improvement or even
Data Loading...
