Experimental arm receives lubricant eye-drops (phosphate-free, preservative-free lubricant eye drops containing 0.15% Sodium Hyaluronate with vitamins A and E (AEONTM Repair) to be administered four times a day for 6 weeks following cataract surgery (in addition to the usual post-operative topical medications of Chloramphenicol 0.5 % eye drops for 1 week and topical dexamethasone 0.1% eyedrops (Maxidex) four times a day for 4 weeks).

The control arm group receive the usual post-operative topical medications of Chloramphenicol 0.5 % eye drops for 1 week and topical dexamethasone 0.1% eyedrops (Maxidex) four times a day for 4 weeks after cataract surgery.

Lubricating eye drops

Validated patient satisfaction questionnaire are used. Specially designed and validated conversion tables are used to convert raw scores from questionnaires to Rasch calibrated measures.

A validated self-reported health questionnaire is used where a descriptive and vertical Visual Analogue Scale (VAS) are used. The descriptive scale assesses 5 domains at three levels of difficulty (no / some / extreme problems). The VAS is used to to record patients' self-reported health on a scale from 0-100 (100/100 being excellent health, 0/100 being very poor health.

A validated questionnaire is used with a grading system to grade severity of dry eye . symptoms. Score out of 28. Higher the score, the more significant the dry eye symptoms.

The Oxford Scale is used to grade staining of the conjunctiva and cornea. 0-5 (0 no staining, 5 significant staining).