Abstract
Objective To evaluate intraocular scattering in eyes with posterior capsule opacification by means of an objective scatter index (OSI) obtained from double-pass images of optical quality assessment system (OQAS TM II) and to determine the indication for laser capsulotomy when patients report visual disturbances without decreased visual acuity. Methods In this prospective, observational, and nonconsecutive case series study, a total of 32 eyes of 29 patients are diagnosed with posterior capsule opacification after age-associated cataract were analyzed. Patient examination included age, the period after cataract surgery, logMAR best corrected visual acuity (BCVA), and OSI. Results We found a significant decrease in the BCVA and increase in the OSI with the development of posterior capsule opacification. The decrease of BCVA was statistically correlated with the increase of OSI (r = 0.812, P < 0.01). In patients who reported visual disturbances without decreased visual acuity, OSI decreased to <1.3 and subjective symptoms were resolved in all cases although there was no significant improvement in visual acuity after laser capsulotomy. Conclusions The results of our study showed that OSI is also a useful parameter for objectively evaluating posterior capsule opacification. OSI may help predict laser capsulotomy in patients who report visual disturbances without decreased visual acuity.
Highlights
Phacoemulsification combined with foldable intraocular lens implantation has become the main means for the treatment of cataract
We focused on the observation of the patients who reported visual disturbances without decreased visual acuity, and a questionnaire about visual disturbance was performed by everyone before and after laser capsulotomy
Yotsukura et al [11] performed laser capsulotomy for 16 posterior capsule opacification patients with good best corrected visual acuity (BCVA), and the results showed that BCVA, contrast sensitivity, and retinal scattering were significantly improved after the operation
Summary
Phacoemulsification combined with foldable intraocular lens implantation has become the main means for the treatment of cataract. Postoperative posterior capsular opacification is still an important factor affecting the therapeutic efficacy. It has been reported the incidence of posterior capsular opacification in patients with the age of less than 65 years is as high as 37% [1]. Laser capsulotomy is still the most commonly used means in the treatment of posterior capsule opacification [2]. With the development of cataract microsurgery and improvement in the materials and design of intraocular lens, the incidence of posterior capsule opacification and laser capsulotomy was significantly reduced [3]. Posterior capsule opacification is still a common complication after cataract surgery
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