Purpose: To compare the post-op visual quality of spheric and aspheric acrylic yellow tinted intraocular lens following phacoemulsification cataract surgery. Place of study: Al-Majeed Laser Eye Hospital. Methods: Total 60 subjects (aged 40-65years) with age related mature cataracts were included. Data was assembled by non-probability convenient sampling technique at Al-Majeed Laser Eye Hospital. All patients presenting with mature cataract were include in this study without any other pathology and fundus abnormality. Pre and post-operative visual acuity was measured by using standard snellen visual acuity testing chart. For the purpose of accuracy repetitive values were taken for each patient. Post-operative vision was recorded one month followed by phacoemulsification. Comparisons was made between spheric and asphereic acrylic yellow tinted intraocular lens by applying (descriptive) statistics and paired sample t test for the analysis of results. Results: Quality of vision was compared post-operatively after implantation of aspheric hydrophilic acrylic IOL and spheric IOL in posterior chamber under the same phaco surgeon. All subjects after intra ocular implantation had better corrected visual acuity of 6/9 and more improved 6/6. There were found statistically differences in recorded visual acuity with aspheric yellow tinted iol implanation and spheric iol (p = 0.15) between the two types of intra-ocular lens. The mean, standard deviation, t-value found with spheric IOL were.1867, .18889, 2.517 respectively. However, of aspheric hydrophilic acrylic intra-ocular lens mean, standard deviation and t values found .800, .13493 and 2.5493 respectively. There was significant variance in statistics and quality of vision between the two types of lenses. Conclusions: This study concludes that post –operative improvement in quality of vision was better with aspheric hydrophilic yellow tinted lenses than spheric iol implantation. Implanting a foldable aspheric acrylic IOL gave much advantage in visual outcome to pseudophakes by protecting retina from light of shorter wavelength and decrease of chromatic aberration under the photopic circumstances particularly in subjects at hazard of age-related macular degeneration (AMD).

Purpose: Purpose of this study is to determine the relationship between Post-op central corneal thickness and steroid-induced ocular hypertension following myopic photorefractive keratectomy. Methods: This longitudinal analytical study was carried on 50 patients, both gender and age ranging from 20-40 years who had undergone myopic PRK refractive surgery. The data collected from The Department of Ophthalmology in Madina Teaching Hospital Faisalabad in the duration of 11 months from July 2019 to May 2020. IOP measured by Goldmann applanation tonometer. Recorded IOP greater than 21mmHg was considered as Ocular hypertension (OHT). The post-Op follow-up was conducted 1 day, 1 week, 2-3 weeks, and 4-6 weeks. The CCT and IOP was evaluated carefully. Data was noted on Performa. Data was analyzed by using Descriptive and Repeated Measures ANOVA by using the latest version 21 of SPSS. Results: Out of 50 patients’ 46% were males and 54% were females. The mean score of CCT pre & post operatively for right eye and left eye was 529.28±34.74 & 462.56±40.20 and 529.18±37.2, 462.44±42.60 respectively. Statistically significant effect was seen on post-op central corneal thickness and steroid induced ocular hypertension, according to the results of repeated measure ANOVA. Thinner corneas were more susceptible to steroids induced OHT. In various post-op central corneal thickness, it was observed that patients with thinner corneal thickness ranges 413±4.24 to 449.33±48.29 in right eye and 455.8±56.42 to 456.83±50.52 are more affected by topical steroids used. Males were more affected than females due to decreased central corneal thickness. Elderly patients were more susceptible to steroid-induced ocular hypertension post-operatively. Conclusion: Post-op steroid induced ocular hypertension is affecting by central corneal thickness. Male and elderly individual are more susceptible to steroid-induced ocular hypertension following myopic PRK. Post-Op use of topical steroids cause ocular hypertension in thinner corneas