I’m a day late, but I am fascinated by these comments as I had not previously interpreted this verse in way atall.
How can you change the way you look at things and know whether or not you have a healthy eye?

Christ is the lamp. Our eyes are the way that we see the lamp. What things get in the way of us seeing Christ at work in the world? By asking the questions we are already one step closer, but many do know even know they are blind to Christ’s presence in the world. I’m reading Richard Dawkins ‘The God delusion’ as my lent book, and i feel he is blinded to christ at work in the world.

I have heard from several sources that to have ‘a good eye’ is a Hebrew idiom for being generous.  This makes sense when you read this same text in Matthew 6:22-23.

An easier way of putting this is how you see things in your mind`s eye. How do you feel about things. Maybe not just what is visual.

“This generation (he’s talking to us, too) is evil”, says Jesus in verse 29.  “It wants a sign … but it won’t get what it wants … it will get the sign I have already given it … it will get the light I have lit for it and raised high for all to see.  Do not look at my light with the evil eye of mean spirit and jealousy and wilful unbelief.  (If your eye is evil, pluck it out).  No, look at me and see me with a good eye, a generous spirit, rejoicing in the light I shine on you.  Then your whole being will reflect God’s radiance.”

My sources inform me that the function of the eye is taken as an analogy for the faculty of spiritual perception, which must be in good order to receive the light of revelation. The allusion is to spititual blindness.

Could this also be a warning to us to take care what we view!
CERTAIN books, magazines, films, internet sites, television programmes, digital tv, open us to darkness and possible harm.
Worth thinking about

I see out of one eye only and even that vision is not good.  So this verse strikes at my core being. However I also know that I am alive through God’s grace and the skills of doctors and my Mother who managed to carry me long enough so I might have a chance of living, born 12 weeks early in the early 1950s. Without out that love and wish to have a child, I with all my imperfections would not be here now typing this.

It is then maybe best to read this as how does one see God in one’s heart. If God is clearly seen in the centre of your life, then all is well, but if that vision is not clear ...

Why, oh why are those who claim to be Christians in today’s world expected to radiate His love at all times and to all people. I’ve had abuse thrown at me, in the street, all because I did not want to buy ‘Big Issue’ ; I am constantly having thrown in my face the poverty of the Third world especially at Christmas time; just the right moment to ‘get at’ Christians. I’ve had enough.. but still consider that my eye is as healthy as the next person; but perhaps more selective!

It is so easy to become bound up in looking at all the negative things in our lives to such an extent that we become blind to the glory of God all around us.

  As the psalmist says: “The earth is full of you glory”

We are familiar with the saying “You are what you eat” here Jesus is making a similar statement “You are what you see”.  When we look around our world do we see God’s kingdom flourishing ?  Very often the answer is “No”.  But what is our reaction? Do we seek to live as kingdom people and seek to change things? If we are blind to what we see then we share in the darkness of the world.  If we are truly transformed kingdom people then we should seek to transform the world around us. Jesus dares us to live in the light. Take up the challenge today and transform the lives of the people you meet !