ABSTRACT
To describe the ocular features, clinical profile and results of surgical intervention in a series of patients with facial port-wine stain [PWS] and neurofibromatosis [NF] in the pediatric age group. All consecutive patients having PWS and NF presenting between January 2011 and April 2012 were included. Their systemic and ocular features were recorded. Imaging study of brain and orbits was carried out where required. Appropriate surgical interventions were carried out as indicated. These included trabeculectomy, cycloablation, excision of episcleral haemangioma and vitreo-retinal surgery. Patients were followed up for complications and control of intra ocular pressure [IOP]. A total of 9 eyes of 8 patients were included. At presentation IOP in the involved eye ranged from 6 to 42 mmHg [mean 25.00 +/- 12.23]. Glaucoma was present in 6 eyes. Episcleral haemangioma was noticed in one patient, retinal detachment [RD] was seen in 2 patients. Diffuse choroidal thickening on B scan was noted in 5 eyes of patients with PWS. After applying the appropriate management option, IOP on last follow up ranged from 6 to 24mmHg [mean 13.44 +/- 5.43] in the involved eye the last follow up ranged from 6 to 24mmHg [mean 13.44 +/- 5.43] in the involved eye. The difference between IOP of the involved eyes at initial presentation and that recorded at the last follow-up was significant [p=0.005]. Patients with SWS and NF present with varied clinico-ocular profiles and therapeutic interventions are individualized according to the ocular involvement. Post operative complications after treatment of glaucoma in such patients can largely be prevented with special measures taken per-operatively
ABSTRACT
Objective: To assess the incidence and distribution of corneal haze after photorefractive keratectomy [PRK] in low, moderate and high myopia in Pakistani population
Study Design: A prospective interventional study conducted during one year at Al-Shifa Trust Eye Hospital, Rawalpindi
Participants and Methods: Excimer laser PRK was performed on 118 eyes of sixty patients. 84 corneas were treated with multizone PRK in a single step, using three zones. Standard PRK was performed on 34 corneas. Cases were followed up to three to six months. Haze was graded subjectively on a scale of 1 to 4
Results: At the end of six months after PRK, one [8.34%] eye from low myopia group, 2 [5.71%] eyes from moderate myopia group and 6 [13.96 %] eyes from high myopia group had grade 1 corneal haze. Grade 2 corneal haze was found in 5 [14.30%] eyes from moderate myopia group and 6 [13.96%] eyes from high myopia group. Similarly 4 [11.42%] eyes and 10 [23.25%] eyes had grade 3 corneal haze from moderate and high myopia groups respectively. Grade 4 corneal haze developed in 21 [48.83%] eyes in high myopia group. The eyes undergone single zone PRK required deeper ablations with relatively denser postoperative corneal haze as compared to the eyes treated with multiple zone PRK
Conclusion: It is concluded that deeper the ablation required to correct myopia higher the incidence of corneal haze. Haze can be reduced by using such techniques which would correct more degrees of myopia with less depth of ablation