At what point specifically does it deteriorate and how often have you observed this?
Sounds like primary obstruction being dissolved and perhaps not effectively clearing out from the tiny capillaries of the eye. A mineral or vitamin deficiency would hardly manifest in the days of a cleanse and hardly become alleviated after a short period of eating, this is why I lean towards the capillaries. Try upping the cayenne a bit as it will dilate the passageways for more effective clearing out of material. Consider taking therapeutic doses of cayenne 1/4 to 1 tsp of 90,000 hu cayenne at a time to clear obstruction, finally pineapple fasting or simply masticating pineapple while spitting the pulp works wonders on clearing capillary problems. Keep the pineapple consumption away from other foods to allow the enzymatic action.